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2022-11-16: Are there Undiscovered Elements Beyond The Periodic Table?

  • 16:37: ... the hypothesis that says that the future emergence of new civilizations has to be cut ...

2022-11-09: What If Humanity Is Among The First Spacefaring Civilizations?

  • 10:37: ... so-called grabby aliens model hypothesises the existence of a cosmic deadline for the birth of new civilisations: ...

2022-09-14: Could the Higgs Boson Lead Us to Dark Matter?

  • 03:24: ... to spot even a single collision compatible with the dark matter particle hypothesis. ...
  • 12:06: ... 17% of Higgs bosons should decay into invisible neutrinos, so the null hypothesis would be for a branching fraction of ...

2022-05-25: The Evolution of the Modern Milky Way Galaxy

  • 16:02: ... which may have first appeared in tidal  pools. The tidal pools hypothesis   no longer the clear frontrunner for abiogenesis.  For example, ...
  • 18:41: ... that galaxies are shrinking. Jonathan Rose   has a similar hypothesis that all matter is  constantly shrinking within a static ...

2022-05-18: What If the Galactic Habitable Zone LIMITS Intelligent Life?

  • 00:24: ... sustaining life, as we discussed  in our episode on the rare earth hypothesis.   But if you want life, one of the  only non-negotiable ...

2022-03-30: Could The Universe Be Inside A Black Hole?

  • 10:00: This was the basic proposal by Indian physicist Raj Pathria in his Black Hole Cosmology hypothesis back in 1972.
  • 11:39: We’d need some deeper explanatory value to this hypothesis to really take it seriously.

2022-01-19: How To Build The Universe in a Computer

  • 11:35: We’ve talked about this simulation hypothesis stuff before, and maybe we’ll come back to it.

2021-12-20: What Happens If A Black Hole Hits Earth?

  • 11:50: One of the great things about this hypothesis is that it makes some very specific predictions.
  • 19:14: ... however points out that there’s nothing special in this hypothesis because cats are multidimensional. And I’ll add that all animals are ...

2021-12-10: 2021 End of Year AMA!

  • 00:02: ... any rate so that that seemed to be a bit of a downer um but the the hypothesis that um professor white and team are working on is that there is ...

2021-11-10: What If Our Understanding of Gravity Is Wrong?

  • 04:27: ... very promising, but in order to be taken seriously, a new hypothesis like MOND needs to do a few things. One: it needs to give the right ...

2021-09-21: How Electron Spin Makes Matter Possible

  • 16:27: ... objects flying at crazy speeds out of the Milky Way. Happily the winning hypothesis of enormous black holes was as awesome as all the others. Dave Lawrence ...

2021-08-10: How to Communicate Across the Quantum Multiverse

  • 06:28: ... This gives us a sense of why it seems impossible to test the Many Worlds hypothesis - those other worlds by definition have no effect on our own. That’s ...

2021-05-25: What If (Tiny) Black Holes Are Everywhere?

  • 11:28: You guys had a lot to say about the value of pursuing the “it’s aliens” hypothesis.
  • 11:42: And that’s what makes me most wary about the aliens hypothesis.
  • 11:46: In almost every scientific investigation there’s going to be some hypothesis that you favor, even if you’re unaware of it.
  • 11:54: The effect of such a bias is that you can tend to interpret all evidence in the light of that particular hypothesis.
  • 12:05: ... the case of the aliens hypothesis - this one is particularly dangerous because literally any unexplained ...
  • 12:30: ... are, and that’s why we absolutely should keep an open mind about the hypothesis while at the same time being extremely cautious about the pitfalls of ...
  • 13:10: But this assumes that you have the omniscience to imagine all possible hypotheses.

2021-05-11: How To Know If It's Aliens

  • 06:27: ... Oumuamua and a clarification that there are huge problems with the alien hypothesis. But why not aliens if there’s no accepted natural explanation? Well the ...
  • 12:35: ... robustly funded, and that we should actively pursue the “It’s Aliens!” Hypotheses when warranted. The question is - when do you run to the press shouting ...
  • 17:14: ... out that there are scientists who have pushed the black hole dark matter hypothesis for years, so it hasn’t been overlooked as I implied at the beginning of ...
  • 18:16: ... and it wasn’t meant to be - it takes excellent intuition to come up with hypotheses that are even plausible. Actually being right is a whole new level. Who ...

2021-04-13: What If Dark Matter Is Just Black Holes?

  • 02:45: Scientific method 101 - form a hypothesis, then try to prove it wrong.
  • 02:50: Our hypothesis is that dark matter is made of black holes.
  • 04:23: Fortunately for our hypothesis, there is a reason to think that colossal numbers of black holes may have formed in the very early universe.
  • 05:28: Because of this, to really falsify the primordial black hole as dark matter hypothesis, we need to rule out this entire mass range.

2020-12-22: Navigating with Quantum Entanglement

  • 03:03: ... today we’re going to talk about an increasingly favored hypothesis, and surely the most interesting one: the idea that proposes birds can in ...

2020-09-08: The Truth About Beauty in Physics

  • 07:19: ... might give incorrect results, and so incorrectly discredit a true hypothesis. ...

2020-07-28: What is a Theory of Everything: Livestream

  • 00:00: ... itself and so that's one that's kind of one philosophy or take hypothesis that has driven research and string theory or things you may hear ...

2020-06-30: Dissolving an Event Horizon

  • 00:09: At least, so says the cosmic censorship hypothesis.
  • 01:30: ... the dire consequences, Roger Penrose proposed the Cosmic Censorship Hypothesis - which basically states that every gravitational singularity must be ...
  • 01:42: ... to look deeper at why many physicists believe the cosmic censorship hypothesis must be true - even without knowing exactly WHY it’s ...
  • 06:58: ... cosmic censorship hypothesis tells us that something will always stop a gravitational singularity ...
  • 10:48: In fact, if you define the cosmic censorship hypothesis in more technical terms, it seems that physics should allow its violation.
  • 10:59: ... understand that problem, and the implications of the cosmic censorship hypothesis being true or not, you’ll have to wait for an upcoming deeper dive to ...

2020-06-15: What Happens After the Universe Ends?

  • 00:23: I’m about to give you the most outrageous hypothesis so far that may actually be right.
  • 16:27: MC’s creates notes that if the RNA world hypothesis is correct, then viruses were the first "life" to appear on Earth.

2020-06-08: Can Viruses Travel Between Planets?

  • 15:49: ... so-called lifshitz theory, which is based on this altered vacuum energy hypothesis. ...
  • 16:26: And I believe the great Douglass Adams that had a similar hypothesis.

2020-02-24: How Decoherence Splits The Quantum Multiverse

  • 09:18: ... to the decoherence hypothesis, it’s not really some magical effect whereby the wavefunction “knows” ...

2020-02-03: Are there Infinite Versions of You?

  • 10:21: We covered most of the important assumptions in this crazy hypothesis - except the main one.

2020-01-13: How To Capture Black Holes

  • 00:00: ... and grow like some monstrous version of a solar system. This insane hypothesis is getting closer to reality, at least according to the papers in ...
  • 02:45: which proposes a way for us to actually test this hypothesis.
  • 08:27: ... more high-mass mergers that will be further evidence in favour of the hypothesis. Yang and co. also predict a particular distribution of black hole spins ...
  • 12:49: ... but I don't think it' fair to cite this as a weakness of the idea. The hypothesis is trying to explain the apparent fine tuning of the fundamental ...
  • 13:26: ... to this is ... no one has any idea. The cosmological natural selection hypothesis doesn't really define the ongoing connection between the initial black ...

2019-12-17: Do Black Holes Create New Universes?

  • 00:10: Cosmological natural selection proposes exactly this - but even better, it claims to be able to test the hypothesis.

2019-12-09: The Doomsday Argument

  • 10:37: This is the definition invoked in the simulation hypothesis and the Boltzmann brain scenarios.

2019-11-11: Does Life Need a Multiverse to Exist?

  • 13:09: ... the last episode we discussed the Rare Earth Hypothesis - the idea that planets supporting intelligent life may be extremely ...
  • 13:59: Inkblack wanted us to mention the grand tack hypothesis.

2019-11-04: Why We Might Be Alone in the Universe

  • 02:40: ... rare earth hypothesis posits exactly this - that a range of factors made Earth exceptionally ...
  • 02:51: This hypothesis was inspired by some striking observations about our home planet, which I’ll get to - but also by one other piece of evidence.
  • 03:58: ... the Rare Earth hypothesis is a little more optimistic - it states that planets capable of spawning ...
  • 08:32: ... hypothesis for the first formation of life is that it evolved in tidal pools, with ...
  • 08:50: More recently, alternative hypotheses for the location of abiogenesis have gained favor - particularly geothermal vents on the ocean floor.
  • 11:24: The question raised by the rare earth hypothesis is just how lucky were we?

2019-08-19: What Happened Before the Big Bang?

  • 11:07: ... galaxies and so we couldn't properly test this expanding universe hypothesis. ...

2019-08-06: What Caused the Big Bang?

  • 00:39: Most cosmologists buy some variation of the inflation hypothesis.
  • 01:17: The inflation hypothesis solves these problems with a single simple idea.
  • 02:09: For a hypothesis like this to be taken seriously, the physics also has to make sense.

2019-07-18: Did Time Start at the Big Bang?

  • 11:12: ... black holes birth new universes as in Lee Smolin's "Fecund Universe" hypothesis. ...
  • 11:36: ... to our sense of narrative which might be a reason to be wary of these hypotheses Now they also appeal to our intuition for causality Things happen ...

2019-05-09: Why Quantum Computing Requires Quantum Cryptography

  • 15:04: ... that dark matter is some sort of exotic particle - which is the going hypothesis - then black holes would definitely attract dark matter gravitationally, ...

2019-04-24: No Dark Matter = Proof of Dark Matter?

  • 00:03: ... appeared a few points have come out in favor of the dark matter as mater hypothesis versus the modified gravity schemes there's gravitational lensing the ...

2019-03-28: Could the Universe End by Tearing Apart Every Atom?

  • 15:23: ... Pick notes that dark energy backs up their hypothesis that massive dinosaur fossils were actually originally chicken sized. ...

2018-12-12: Quantum Physics in a Mirror Universe

  • 00:02: ... to test this Yi and Liang found a brilliant experimentalist to test the hypothesis the her being Qin Qiong Wu who for some reason didn't get in on that ...

2018-12-06: Did Life on Earth Come from Space?

  • 00:03: ... Way some scientists think this may be the case this is the panspermia hypothesis there's something odd about the first appearance of life There's ...

2018-11-21: 'Oumuamua Is Not Aliens

  • 05:32: The lightsail hypothesis potentially explains the acceleration and the weird shape.
  • 10:14: The other issue with the lightsail hypothesis is the speed.
  • 11:31: The lightsail hypothesis for Oumuamua was first presented by Avi Loeb in late September in a "Scientific American" article.
  • 15:07: ... neutrino coming from directly below is incredibly unlikely, hence the hypothesis that it was an electron or muon neutrino that interacted to produce a ...
  • 16:10: Some of you took that to be evidence for the simulation hypothesis, but actually it's just that the exponent got lost in the cut and paste.

2018-10-25: Will We Ever Find Alien Life?

  • 10:00: But you can look into the Rare Earth Hypothesis or the GIAIAN bottleneck hypothesis for some plausible proposals.
  • 14:43: Korbus Barkly and some others ask whether, if string theory makes no testable predictions, shouldn't it be just called string hypothesis?
  • 15:20: ... allows you to understand some aspect of the natural world, while a hypothesis most often refers to a single claim rather than a coherent framework ...

2018-10-10: Computing a Universe Simulation

  • 01:18: I just described the cellular automaton hypothesis.
  • 11:29: I suppose that has implications for the simulation hypothesis.

2018-10-03: How to Detect Extra Dimensions

  • 00:38: We're already making definitive statements about hypotheses that were previously untestable.

2018-09-20: Quantum Gravity and the Hardest Problem in Physics

  • 16:30: We all get to fuzzballs, or better known as the black hole triple hypothesis.

2018-09-12: How Much Information is in the Universe?

  • 00:52: And then there's the simulation hypothesis, in which that computation is engineered by who knows what, or who.

2018-07-25: Reversing Entropy with Maxwell's Demon

  • 11:43: Iago Silva criticizes our assumption of the ergodic hypothesis.
  • 11:49: ... the non-physicists out there, the ergodic hypothesis is basically the assumption that all microstates are equally probable ...

2018-04-11: The Physics of Life (ft. It's Okay to be Smart & PBS Eons!)

  • 05:42: There are a few hypotheses.

2018-03-28: The Andromeda-Milky Way Collision

  • 10:43: ... the case of the result we discussed, the entire hypothesis that dark matter was responsible for the cooling of the early universe ...

2018-02-14: What is Energy?

  • 13:38: The grand tack hypothesis suggests that Jupiter may have migrated to Mars' orbit before moving back out again.

2018-01-31: Kronos: Devourer Of Worlds

  • 05:54: The researchers tested the hypothesis by throwing a bunch of Earth-like planets into a sun-like star-- mathematically, I mean.

2018-01-17: Horizon Radiation

  • 13:44: ... stars may actually be speaking, considering Penrose's quantum brain hypothesis, which states that any sufficiently complex system creates ...

2017-12-20: Extinction by Gamma-Ray Burst

  • 06:34: That fits the hypothesis of a GRB.

2017-12-13: The Origin of 'Oumuamua, Our First Interstellar Visitor

  • 04:36: PZ 17 investigate three hypotheses.
  • 05:18: So, hypothesis number two is that the object was ejected and flung towards us from a nearby star system.

2017-08-24: First Detection of Life

  • 03:18: As Sagan puts it, life is the hypothesis of last resort.

2017-08-10: The One-Electron Universe

  • 06:58: So how does this work with Wheeler's one-electron hypothesis?

2017-06-07: Supervoids vs Colliding Universes!

  • 01:14: The evidence against part tells us that the authors think that this hypothesis is wrong.
  • 01:21: ... what excited everyone about the alternative, bubble-universe-collision hypothesis Before we go into detail about either of these hypotheses, let's get the ...
  • 07:31: The void hypothesis was always the least crazy idea.

2017-05-10: The Great American Eclipse

  • 11:02: ... out that Neil deGrasse Tyson has actually argued against the simulation hypothesis elsewhere, whereas he appeared to argue for it in that ...
  • 11:26: We make jokes about hypotheses, and we take them too far.

2017-05-03: Are We Living in an Ancestor Simulation? ft. Neil deGrasse Tyson

  • 10:19: The hypothesis is unfalsifiable.
  • 11:03: He posits a type of Bayesian reasoning, so assessing the probability of the hypothesis being true by taking into account prior probabilities.

2017-04-26: Are You a Boltzmann Brain?

  • 08:07: The hypothesis is also impossible to prove wrong.
  • 08:23: The hypothesis is unfalsifiable.

2017-01-19: The Phantom Singularity

  • 12:36: ... Google Hangout where he pretty much obliterated the entire white hole hypothesis by correctly pointing out that if they existed in any great numbers, we ...

2016-12-08: What Happens at the Event Horizon?

  • 17:54: I have already stated why such a hypothesis appeared absolutely untenable to me.

2016-11-30: Pilot Wave Theory and Quantum Realism

  • 13:07: OK, so the hypothesis is that strange matter is the most stable matter in the universe.

2016-11-09: Did Dark Energy Just Disappear?

  • 07:36: ... statistical hypothesis testing is a whole big topic, and I'll put some links in the ...

2016-09-29: Life on Europa?

  • 03:15: This is the iron-sulfur world hypothesis proposed by Gunter Wachtershauser in the 1980s.
  • 04:25: If we believe the iron-sulfur world hypothesis, then deep-sea vents may be where earth life first originated.
  • 05:12: ... regardless of the truth behind this hypothesis, or even the existence of vents on Europa, if that moon's ocean is in ...

2016-08-10: How the Quantum Eraser Rewrites the Past

  • 11:49: In fact, impact by a primordial black hole was one of the hypotheses that Seveneves scientists proposed for the moon's inexplicable destruction.

2016-08-03: Can We Survive the Destruction of the Earth? ft. Neal Stephenson

  • 09:26: This is one hypothesis for the mess extinction event that ended the Ordovician period 450 million years ago.

2016-07-06: Juno to Reveal Jupiter's Violent Past

  • 05:08: One possible scenario for the first half billion years is the Grand Tack Hypothesis.
  • 07:22: The Grand Tack Hypothesis is still just that-- a hypothesis.

2015-11-05: Why Haven't We Found Alien Life?

  • 11:31: ... point of this philosophy is that the alien hypothesis is a bad place to start because you can explains almost any weird ...
  • 11:47: ... a week hypothesis until you've generally ruled out everything else or you actually see the ...

2015-09-23: Does Dark Matter BREAK Physics?

  • 04:05: The original modified Newtonian dynamics hypothesis, and it's a general relativity extensions, tries to give us this basic relationship for gravity.
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