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	2022-08-17: What If Dark Energy is a New Quantum Field? 07:31: ... fluctuations. It’s because we know there must be one to explain cosmic inflation. This was a period of extreme exponential expansion that likely occurred ...
	2022-05-04: Space DOES NOT Expand Everywhere 07:12: ... rate of expansion - perhaps a period of rapid accelerating growth during inflation, then the expansion slows under the influence of gravity, then dark ...
	2022-03-23: Where Is The Center of The Universe? 13:11: ... there’s even a scenario where this might be the case: that’s eternal inflation, which proposes that our universe is just one bubble of relatively slowly ...
	2022-02-23: Are Cosmic Strings Cracks in the Universe? 12:19: ... think that in the extremely early  universe the so-called inflationary epoch expanded   the subatomic into the cosmic. Some of ...
	2022-02-10: The Nature of Space and Time AMA 00:03: ... can uh this can happen forever and you know if the ideas about cost inflation occur then then it happened an enormous number of times um you ...
	2021-10-13: New Results in Quantum Tunneling vs. The Speed of Light 15:30: Well it depends on their density and whether inflation threw them apart faster than they could find each other.
	2021-10-05: Why Magnetic Monopoles SHOULD Exist 12:02: Except that both of these ideas are saved by yet another speculative idea - cosmic inflation.
	2021-09-07: First Detection of Light from Behind a Black Hole 14:39: In fact cosmic inflation - the event that many physicists put the bang in the big bang - IS a type of vacuum decay. 15:03: ... racing apart from each other. You can look at our past episodes on inflation for all the gory details Dr Patrick Bryant from Carnegie Mellon ... 14:39: In fact cosmic inflation - the event that many physicists put the bang in the big bang - IS a type of vacuum decay.
	2021-07-07: Electrons DO NOT Spin 15:31: ... because that moment lost in our ignorance about quantum gravity and inflation and whatever  other crazy theory we haven’t figure out yet. But ... 16:45: ... to the outside. In the early universe, the extreme expansion of cosmic inflation may have permanently separated entangled  regions, but left those ...
	2021-05-25: What If (Tiny) Black Holes Are Everywhere? 08:41: It may have been possible to create this insane abundance of black holes if they formed during the epoch of cosmic inflation. 10:08: I mentioned this inflation thing earlier - what if at the singularity of a black hole a new inflation is triggered? 10:22: This conjures images of insane numbers of minuscule black holes swarming through the universe, and in each one a new inflation - a new universe? 10:08: I mentioned this inflation thing earlier - what if at the singularity of a black hole a new inflation is triggered?
	2021-02-24: Does Time Cause Gravity? 09:20: ... inflaton field, or in the final decay of those inflatons at the end of inflation. ... 09:33: ... the picture where you have the big bang, then you have an instant of inflation, then regular ... 09:44: ... example, in the eternal inflation model, inflation may have lasted for a very very long time and still be ... 09:57: It makes more sense to talk about the end of inflation as the beginning of such a universe, rather than the beginning of global inflation. 10:04: ... in that case the last instant of inflation IS the instant of the big bang, and gravitational Kinkusnacht asks ... 10:35: ... of those waves with matter right after inflation may have caused characteristic patterns in the distribution of matter, ... 10:56: ... inflation it’s believed that quantum gravitational effects would have been very ... 09:44: ... example, in the eternal inflation model, inflation may have lasted for a very very long time and still be ... 09:20: ... was referring to the extremely energetic events during the inflationary epoch - fluctuations in the so-called inflaton field, or in the final ... 10:21: The most well known prospect is by detecting the signatures of primordial gravitational waves - waves from the inflationary epoch. 09:20: ... was referring to the extremely energetic events during the inflationary epoch - fluctuations in the so-called inflaton field, or in the final ... 10:21: The most well known prospect is by detecting the signatures of primordial gravitational waves - waves from the inflationary epoch. 09:20: ... was referring to the extremely energetic events during the inflationary epoch - fluctuations in the so-called inflaton field, or in the final decay of ... 10:21: The most well known prospect is by detecting the signatures of primordial gravitational waves - waves from the inflationary epoch. 09:20: ... was referring to the extremely energetic events during the inflationary epoch - fluctuations in the so-called inflaton field, or in the final decay of ...
	2021-02-17: Gravitational Wave Background Discovered? 00:00: ... kinks become unkinked in the speculative time before the big bang cosmic inflation was driving exponentially accelerating expansion and huge gravitational ...
	2020-07-28: What is a Theory of Everything: Livestream 00:00: ... whether it comes from string theory whether it comes from just inflation or a big bang theory you know this idea is fascinating as it stands ...
	2020-06-15: What Happens After the Universe Ends? 11:45: ... explanation for the smoothness of the early universe - its cosmic inflation - a period of extreme exponential expansion that smoothed things out in ... 12:13: That then inspired this daisy-chaining of universes, which eliminated the need for inflation. 12:28: ... Inflation isn’t needed because the inflationary period is equivalent to the ... 11:45: ... explanation for the smoothness of the early universe - its cosmic inflation - a period of extreme exponential expansion that smoothed things out in ... 12:28: ... Inflation isn’t needed because the inflationary period is equivalent to the rescaled ...
	2020-05-18: Mapping the Multiverse 12:42: ... this so-called mass inflation means the inner structure of the Kerr black hole is catastrophically ...
	2020-05-11: How Luminiferous Aether Led to Relativity 15:13: ... before 10^-43 seconds - the so-called Planck time. At that point inflation seems to give our best picture, and I'm going to have to direct you to ...
	2020-02-11: Are Axions Dark Matter? 12:47: ... pointed out a Medium article by Ethan Seigel that claimed that even if inflation proceded for the entire age of the universe, the universe would still ... 14:14: ... it would therefore take way longer than the age of the universe for inflation to make a volume 10^10^90 or 123 times our obserable universe. So Eathan ... 14:27: But inflation would get you there eventually as long as it never ended - and that's pretty much the definition of eternal inflation. 14:39: ... also points out that eternal inflation must have had a beginning, so it hasn't yet lasted for infinite time - ... 12:47: ... pointed out a Medium article by Ethan Seigel that claimed that even if inflation proceded for the entire age of the universe, the universe would still not be ...
	2020-02-03: Are there Infinite Versions of You? 08:27: In fact that’s essentially the eternal inflation picture - one of the most popular ways to produce infinite universes. 10:47: ... the other hand, if we somehow verify the eternal inflation picture then it’s very hard to avoid an infinite universe, or at least ... 08:27: In fact that’s essentially the eternal inflation picture - one of the most popular ways to produce infinite universes. 10:47: ... the other hand, if we somehow verify the eternal inflation picture then it’s very hard to avoid an infinite universe, or at least one ... 08:27: In fact that’s essentially the eternal inflation picture - one of the most popular ways to produce infinite universes.
	2020-01-13: How To Capture Black Holes 12:17: ... an arbitrarily gigantic universe from very little matter and that is inflation, in which the rapid exponential expansion of space can create a ... 12:49: ... of everything. Ideas like cosmological natural selection and eternal inflation are helpful because they reduce the amount of work required by that ... 12:17: ... that multiplies the density of a high-energy quantum field powering inflation. Check out our episodes on cosmic inflation to expand on that ... 13:26: ... in the formation of the black hole singularity. If it grows by some inflation-like expansion into an entirely new spacetime then it may not care about the ...
	2019-12-09: The Doomsday Argument 01:57: ... number of theories in physics from string theory to eternal inflation predict that the cosmological constant could take on different values in ... 16:05: ... would form, and certainly forming a 3-torus as a bubble out of eternal inflation might not be ... 01:57: ... number of theories in physics from string theory to eternal inflation predict that the cosmological constant could take on different values in ...
	2019-12-02: Is The Universe Finite? 07:14: ... included all of the relevant parameters - the expansion rate, details of inflation, the amount and behavior of all different types of mass and energy, ...
	2019-11-18: Can You Observe a Typical Universe? 17:18: ... are struggling to make eternal inflation work without its own fine tuning that may be just as bad as the fine ... 17:29: Well that's a challenge, but inflation is still not so well understood, so it seems there's plenty of opportunity to solve this. 17:18: ... are struggling to make eternal inflation work without its own fine tuning that may be just as bad as the fine tuning ...
	2019-11-11: Does Life Need a Multiverse to Exist? 12:04: ... Linde’s eternal inflation is perhaps the most popular - bubble universes forming in a larger ...
	2019-09-30: How Many Universes Are There? 00:34: But in the eternal inflation picture, ours is just one among uncountable bubble universes. 00:58: We looked at the bizarre idea of eternal inflation in recent episodes – but we stopped short of exploring the full implications of this proposition. 01:48: ... into the surrounding inflating spacetime at the speed of light, causing inflation to stop within the growing ... 02:06: ... the little patches where inflation persists are expanding so fast that they quickly dominate the ... 03:28: We assumed the minimum inflation rate that we think was needed to kick off our own universe. 05:26: As crazy as eternal inflation sounds, it’s still fun to think about the consequences if all of this is true. 05:59: Remember that it was the high energy density of the inflaton field that drove inflation, and the loss of that energy density that ended it. 07:20: People have also invoked the anthropic principle plus eternal inflation to explain a conundrum in string theory. 08:14: Enter the anthropic principle once again: eternal inflation gives us enough universes to easily populate the entire string landscape. 08:43: This one is from Alan Guth, the guy who invented inflation in the first place. 08:49: Here it is: eternal inflation may solve the Fermi Paradox. 12:19: Assuming the crazy rate of inflation in the question, you get that two bubble edges need to be closer than 6x10^-50 m in order to reach each other. 12:42: And it might be very high – especially if the inflaton field is highly correlated from one point to the next, as in slow-roll inflation. 13:12: Where does that leave eternal inflation? 02:06: ... dominate the non-inflating network of bubbles, and so the cycle of inflation continues. ... 00:34: But in the eternal inflation picture, ours is just one among uncountable bubble universes. 03:28: We assumed the minimum inflation rate that we think was needed to kick off our own universe. 05:26: As crazy as eternal inflation sounds, it’s still fun to think about the consequences if all of this is true. 00:52: A greater inflationary spacetime whose expansion never ends.
	2019-09-16: Could We Terraform Mars? 16:05: ... episode "What Happened Before the Big Bang", in which we look at eternal inflation. As well as the episode on the exciting possibility that the North and ... 16:42: ... too - and some inflationary models use them, resulting in more complex inflation ... 17:08: Inflation supposedly happened because the inflaton field had a very high energy density, and it stopped when that energy dropped to a very low value. 17:51: There were a lot more great questions on eternal inflation, but I'll get to those when we do the eternal inflation challenge question answer episode. 16:42: ... too - and some inflationary models use them, resulting in more complex inflation scenarios. ... 17:08: Inflation supposedly happened because the inflaton field had a very high energy density, and it stopped when that energy dropped to a very low value. 16:42: ... like vector fields and spinor fields can do the job too - and some inflationary models use them, resulting in more complex inflation ...
	2019-08-26: How To Become an Astrophysicist + Challenge Question! 08:59: ... I have a challenge question based on our recent episodes on cosmic inflation You'll definitely need to have watched those to get this In those ... 10:46: ... times as many less more to answer this you'll need to assume a rate for inflation Let's assume the minimum rate needed to explain the horizon and flatness ... 11:51: ... inflation Throws them too far apart write up your answers Neatly show all of your ... 08:59: ... episodes we saw how an inflating universe can produce bubbles in which inflation stops each a newly born universe in eternal inflation This process goes on ... 11:51: ... inflation Throws them too far apart write up your answers Neatly show all of your work ... 08:59: ... I have a challenge question based on our recent episodes on cosmic inflation You'll definitely need to have watched those to get this In those episodes we ...
	2019-08-19: What Happened Before the Big Bang? 00:43: These days, the best accepted description of the time before the Big Bang is given by inflation theory. 01:01: In previous episodes, we looked at why cosmologists think we need inflation and what could possibly cause it. 01:18: See, if we accept that inflation happened at all, it's hard to escape the conclusion that it never actually stopped. 01:36: ... inflation, if it actually happened, was driven by the inflaton field, which had the ... 02:03: ... drives it. To start with, you need a particular type of field to cause inflation, something called a scalar ... 03:36: In our last inflation episode, we looked at the case of old inflation proposed by Alan Guth in 1979. 03:54: When that state decays, potential energy is released as real particles, ending inflation, and re-heating the universe in an expanding bubble. 04:16: Old inflation predicts empty firewall bubbles that look nothing like the early phase of our universe. 04:22: ... more promising idea is something called slow roll inflation This was proposed by Andrei Linde, Andreas Albrecht and Paul Steinhardt, ... 04:35: ... idea of slow roll inflation is that the inflaton field isn't stuck at a local minimum in the ... 04:57: ... would still give us our near constant energy density needed to power inflation and then, as the roll sped up towards the valley, inflation would ... 05:13: ... of the inflating universe would approach this minimum at the same time Inflation would shut down smoothly and the universe would be reheated everywhere ... 05:33: But if slow roll inflation stops everywhere at once, how does it last forever and how does it give us multiple universes? 06:23: Very flat potential energy slopes are also possible in these theories, enabling slow roll inflation or a combination of both. 06:32: ... physics requires yet more episodes, so, for now take my word for it that inflation fits some theory even if that theory is also entirely ... 06:43: As speculative as inflation is, it does make some predictions and some are even testable. 07:01: ... means some regions of the universe would finish inflation a little ahead of others And that will lead to very small density and ... 07:25: In fact, this is perhaps the best evidence we have that inflation is plausible, it can predict the pattern of temperature fluctuations in the CMB. 07:35: ... should, according to inflation, come in all possible sizes on the sky and be evenly distributed in ... 08:01: They also give eternal inflation and multiple universes. 08:06: ... slow roll inflation, exponential expansion should grind to a halt over large regions as the ... 08:35: Such fluctuations would be extremely rare and so you wouldn't think they'd count for much, but remember, Inflation causes exponential expansion. 09:06: ... result is stunning; inflation never stops, but rather forms a fractal structure of infinitely ... 09:56: Can eternal inflation last infinitely into the past as well as the future? 10:04: ... are also deep possible connections between inflation and string theory and with the holographic principle, as described in ... 10:33: ... at the Big Bang" and "What caused the Big Bang, the real physics of inflation" A couple of people mentioned George Lemaitre, who predicted the ... 11:19: Pup314 asks if the reheating of the universe after inflation is what gave us the cosmic background radiation. 11:28: The CMB was released about 400,000 years after the end of inflation when the reheated universe first became transparent. 11:38: The reheating i'm talking about happened right at the end of inflation, which is basically corresponding to the beginning of our universe. 12:07: Some of you asked how our cosmic inflation episode explains what caused the Big Bang, which is what we claimed in the title. 12:29: ... Inflation actually gives a physical reason for the universe to have started with a ... 12:39: ... inflation doesn't explain where the very first speck of space-time and energy came ... 13:17: ... that followed the initial kick and we think that kick was caused by inflation. ... 12:39: ... inflation doesn't explain where the very first speck of space-time and energy came from ... 08:06: ... in the Inflaton field would lead to slight differences in when the inflation ends from one point to the next But quantum fluctuations come in all sizes ... 03:36: In our last inflation episode, we looked at the case of old inflation proposed by Alan Guth in 1979. 12:07: Some of you asked how our cosmic inflation episode explains what caused the Big Bang, which is what we claimed in the title. 08:06: ... slow roll inflation, exponential expansion should grind to a halt over large regions as the inflaton ... 06:32: ... physics requires yet more episodes, so, for now take my word for it that inflation fits some theory even if that theory is also entirely ... 01:18: See, if we accept that inflation happened at all, it's hard to escape the conclusion that it never actually stopped. 04:16: Old inflation predicts empty firewall bubbles that look nothing like the early phase of our universe. 03:36: In our last inflation episode, we looked at the case of old inflation proposed by Alan Guth in 1979. 05:33: But if slow roll inflation stops everywhere at once, how does it last forever and how does it give us multiple universes? 00:43: These days, the best accepted description of the time before the Big Bang is given by inflation theory. 01:07: ... going to peer further back in time and explore a stunning implication of inflationary ...
	2019-08-06: What Caused the Big Bang? 00:00: Every astronomy textbook tells us that soon after the Big Bang there was this period of exponentially accelerating expansion called Cosmic Inflation. 00:28: Well, that's what we're covering today: the real physics of cosmic inflation. 00:39: Most cosmologists buy some variation of the inflation hypothesis. 01:04: Another problem fixed by inflation is the absence of magnetic monopoles. 01:17: The inflation hypothesis solves these problems with a single simple idea. 01:22: In addition, inflation gives us an explanation for why the universe is expanding in the first place. 01:44: ... Inflation trades four mysteries for one: the problems of smoothness, flatness, ... 02:04: Especially something as extravagant as inflation. 02:14: In the case of inflation part of the appeal is that it fits extremely nicely into our modern understanding of gravity and quantum mechanics. 03:48: ... hand, in order to solve the smoothness, flatness, and monopole problems inflation needs to expand the universe by a factor of 10 to the power of 25 in ... 04:13: ... do this, the energy density of the vacuum during inflation would need to be vastly stronger than dark energy. Also, for inflation ... 07:06: We would call this a false vacuum and it gives us exactly the constant vacuum energy density needed for inflation. 07:26: ... original idea for inflation proposed by Alan Guth in 1979 goes something like this: In the early ... 07:59: ... at a constant very high energy density, inflation takes hold; the exponential nature of inflation quickly blows up the ... 08:29: ... Inflation and the corresponding super cooling would go on forever if the inflaton ... 09:04: Inflation would stop at that point. 09:50: And inside the bubble, inflation would end. 09:53: ... space would still be expanding out whatever speed it had at the end of inflation, but that expansion would no longer be exponentially ... 10:39: So, the vacuum of inflation is converted into an extremely hot ocean of particles. 11:17: But, right from the start Guth admits a number of problems with his story. The big one is about how inflation stops. 11:51: ... in order for inflation to last long enough to do its job, the probability for the appearance of ... 12:09: Guth's idea is now called old inflation. 12:12: ... the nature of the in flattened field so that allows a smooth exit from inflation across the universe rather than in a series of ... 12:28: bThese new inflation models are much more successful and we'll get into them in an upcoming episode. 12:34: But, by delving deeper into the physics of inflation, physicists discovered some pretty crazy predictions. 12:41: If inflation happened at all, that it's hard to avoid two conclusions: Once started, inflation should continue... 12:49: eternally - Only stopping in patches where a bubble universe forms. And once started, inflation should produce infinite such universes. 12:41: If inflation happened at all, that it's hard to avoid two conclusions: Once started, inflation should continue... 00:39: Most cosmologists buy some variation of the inflation hypothesis. 01:17: The inflation hypothesis solves these problems with a single simple idea. 12:28: bThese new inflation models are much more successful and we'll get into them in an upcoming episode. 12:34: But, by delving deeper into the physics of inflation, physicists discovered some pretty crazy predictions. 07:26: ... original idea for inflation proposed by Alan Guth in 1979 goes something like this: In the early universe ... 11:17: But, right from the start Guth admits a number of problems with his story. The big one is about how inflation stops. 07:59: ... at a constant very high energy density, inflation takes hold; the exponential nature of inflation quickly blows up the volume of ... 01:44: ... Inflation trades four mysteries for one: the problems of smoothness, flatness, missing ... 00:09: ... a tiny fraction of a second, inflationary expansion multiplied the size of the universe by a larger factor than in ...
	2019-07-18: Did Time Start at the Big Bang? 01:56: ... 32 seconds Included a period of extremely rapid expansion called cosmic inflation We've talked about the reasons we need inflation in previous episodes ... 09:38: ... actually get to those soon But to whet your appetite, first up, cosmic inflation can offer a temporary reprieve from the ... 09:52: ... inflation suggests that our universe appeared as a regularly expanding bubble in ... 11:36: ... from nothing - Stephen Hawking's timeless interpretation of internal inflation that draws on the holographic principle all things we'll discuss in the ... 09:52: ... inflation suggests that our universe appeared as a regularly expanding bubble in an ... 01:56: ... 32 seconds Included a period of extremely rapid expansion called cosmic inflation We've talked about the reasons we need inflation in previous episodes and I'll ...
	2019-04-03: The Edge of an Infinite Universe 16:01: ... horizon to produce a global state where everything just looks like an inflationary ...
	2019-02-07: Sound Waves from the Beginning of Time 04:02: And now that they've expanded enormously by cosmic inflation in the beginning instant of the Big Bang.
	2018-06-27: How Asteroid Mining Will Save Earth 00:45: His net worth was three times greater than that of our richest tech billionaires, inflation adjusted.
	2018-04-11: The Physics of Life (ft. It's Okay to be Smart & PBS Eons!) 13:09: On the other hand, during the inflationary epoch in the extremely early universe, the cosmic event horizon was very close to every point.
	2017-10-11: Absolute Cold 06:39: This leads to the famous Higgs mechanism and possibly also the phenomena of inflation and dark energy.
	2017-09-28: Are the Fundamental Constants Changing? 02:13: It's been suggested that a changing speed of light might be an alternative to inflation theory, or even to the apparent expansion of the universe.
	2017-08-02: Dark Flow 08:45: Then, the event known as cosmic inflation caused an exponential expansion that threw these once neighbors far, far apart.
	2017-06-21: Anti-Matter and Quantum Relativity 14:02: ... energy can come to a rest in an eternally inflating spacetime, halting inflation in that ...
	2017-06-07: Supervoids vs Colliding Universes! 02:28: These were then amplified by a period of exponential expansion in the very early universe that we call inflation. 08:22: They're ideas like the amplification of topological defects in the universe or an inhomogeneous reheating at the end of a nonstandard inflation. 08:44: A popular version of inflation theory is that of eternal inflation. 08:50: The idea is that the initial period of exponential expansion that we call inflation actually lasts forever. 09:03: But in an eternal inflation scenario, a normal universe begins when a small patch of the inflating universe stabilizes. 08:44: A popular version of inflation theory is that of eternal inflation. 08:17: The other weird ideas are about what happened in the inflationary era.
	2016-11-09: Did Dark Energy Just Disappear? 11:23: ... a separate episode soon after the big bang in the event we call "cosmic inflation." So this is a thing that seems to happen in our universe. Dark energy, ...
	2016-10-12: Black Holes from the Dawn of Time 02:50: There are several different stories for the initial size and growth of these fluctuations, and cosmic inflation certainly plays a role.
	2016-06-08: New Fundamental Particle Discovered?? + Challenge Winners! 11:53: ... compared to the 100 past doublings that have happened since the end of inflation, and the infinite number of doublings the will happen in the ...
	2016-05-11: The Cosmic Conspiracy of Dark Energy Challenge Question 04:16: ... the end of the inflationary epoch, when the universe was about 10 to the power of minus 32 seconds ...
	2016-04-20: Why the Universe Needs Dark Energy 05:40: In fact, we already talked about this in our episode on inflation. 06:37: We also talk about this in inflation. 06:40: ... same addition to the Einstein field equations that can describe cosmic inflation can also fix this little problem with the first Friedmann equation and ...
	2016-04-06: We Are Star Stuff 10:24: ... "STELLAR ALCHEMIST"] In a recent episode, we talked about cosmic inflation, and you guys had some big questions in the ... 12:32: And this didn't just happen during inflation. 12:52: How much faster than the speed of light did the universe blow up during inflation?
	2016-03-23: How Cosmic Inflation Flattened the Universe 00:00: [MUSIC PLAYING] Cosmic inflation describes a period of insane exponential expansion right after the instant of the Big Bang. 00:29: ... must have happened in early times, an insane growth spurt that we call inflation. ... 00:40: Today, I want to explain what inflation is, why we need it, and why essentially all cosmologists believe that it really happened. 04:41: So it turns out that we can fix both of these problems with a single, elegant idea called inflation. 05:00: ... light so that most of it appears causally disconnected, at which point inflation stops and regular expansion takes ... 05:23: Inflation takes a very tiny, smooth, flat speck of that blotchy, curvy greater universe and blows it up to a macroscopic volume really, really fast. 05:46: According to inflation, the universe that we see is a tiny part of a vastly larger universe that itself may well be curved. 05:58: ... neatness with which this inflation solves both the horizon and flatness problems really has most ... 06:34: In the subsequent 13.7 billion years since, the universe has expanded by about the same amount that it did during inflation. 07:17: But this bit of math gives us exactly the type of expansion that we need for inflation. 08:27: Another really important thing about the driving mechanism of inflation is that it stopped. 08:42: And while we know the minimum amount of inflation needed before that stopping point, we don't really know when it began or even if it had a beginning. 09:07: This is the idea of eternal inflation. 09:13: With inflation, the Big Bang theory takes on new meaning. 09:25: ... once you accept inflation, there isn't necessarily a good reason to think that there was a normal ... 09:48: In that sense, inflation is the initial kick of the Big Bang. 00:00: [MUSIC PLAYING] Cosmic inflation describes a period of insane exponential expansion right after the instant of the Big Bang. 09:25: ... if there was even was a "before inflation." In fact, the instant that inflation ended can perhaps be thought of as the moment that our universe as we know it ... 08:42: And while we know the minimum amount of inflation needed before that stopping point, we don't really know when it began or even if it had a beginning. 05:58: ... neatness with which this inflation solves both the horizon and flatness problems really has most cosmologists ... 05:00: ... light so that most of it appears causally disconnected, at which point inflation stops and regular expansion takes ... 05:23: Inflation takes a very tiny, smooth, flat speck of that blotchy, curvy greater universe and blows it up to a macroscopic volume really, really fast. 06:08: For this to work, that inflationary expansion had to throw neighboring regions of space apart at many times faster than the speed of light. 08:56: But it's also possible that inflationary expansion is the default state of the greater universe-- I should say multiverse at this point. 09:17: When first conceived, the inflationary period was thought to have started at a particular point after the instant of the Big Bang. 06:08: For this to work, that inflationary expansion had to throw neighboring regions of space apart at many times faster than the speed of light. 08:56: But it's also possible that inflationary expansion is the default state of the greater universe-- I should say multiverse at this point. 09:17: When first conceived, the inflationary period was thought to have started at a particular point after the instant of the Big Bang. 06:08: For this to work, that inflationary expansion had to throw neighboring regions of space apart at many times faster than the speed of light. 08:56: But it's also possible that inflationary expansion is the default state of the greater universe-- I should say multiverse at this point. 09:17: When first conceived, the inflationary period was thought to have started at a particular point after the instant of the Big Bang.
	2016-03-02: What’s Wrong With the Big Bang Theory? 07:47: The theory that describes this pow is called inflation. 08:31: ... fact, inflation solves a number of vexing problems with the Big Bang Theory so well, in ... 08:45: There are a number of explanations for how inflation might have happened. 08:31: ... fact, inflation solves a number of vexing problems with the Big Bang Theory so well, in fact ...
	2015-12-16: The Higgs Mechanism Explained 07:24: Could the Higgs field also explain things like dark energy, inflation?
	2015-09-30: What Happens At The Edge Of The Universe? 07:12: ... ideas for the origin of cosmic inflation suggest that our universe may just be a slowly expanding bubble in an ...
	2015-03-04: Should We Colonize Venus Instead of Mars? 06:49: lingwingzing commented that this was a pretty intuitive way to understand inflation. 06:56: Inflation refers to a very specific expansion of space that occurred in just the first few instances after The Big Bang.

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