
20210421: The NEW Warp Drive Possibilities
 04:31: ... combat this, we have a set of energy conditions that go alongside the Einstein field equations that are meant to ...


20201027: How The Penrose Singularity Theorem Predicts The End of Space Time
 05:01: ... of gravitational fields is called the weak energy condition of general relativity, and it almost certainly holds in black ...
 11:10: ... of pure general relativity, and assume the various energy conditions. We know that general relativity is not the entire ...


20200422: Will Wormholes Allow Fast Interstellar Travel?
 09:11: In general, exotic matter violates the socalled energy conditions of general relativity.
 09:17: ... equation in order for those equations to make physical sense. But these energy conditions are more guidelines than rules, and have been observed to be violated in ...


20191021: Is Time Travel Impossible?
 06:33: These are the socalled energy conditions.
 06:42: But the energy conditions don’t have a really fundamental basis, and they're seen to be violated in some cases – like with the Casimir effect.
 06:51: We can’t completely rule out wormhole or warp drive time machines based just on the energy conditions.


20190328: Could the Universe End by Tearing Apart Every Atom?
 12:11: ... in a way far worse than regular dark energy. It violates the same energy conditions of general relativity that prohibit negative mass and time ...


20190130: Perpetual Motion From Negative Mass?
 09:32: It also violates the energy conditions of general relativity.
 09:46: ... fact the mere existence of negative mass breaks certain energy conditions, but the prospect of a bottomless well of infinite negative energy breaks ...


20151028: Is The Alcubierre Warp Drive Possible?
 04:46: ... proposed solutions, one of which is to lay down the external negative energy conditions along the path before you leave, sort of like a warp ...
