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Teleparallel gravity may very well solve many problems

posted 3 years ago by warrior-poet (1369)
5 replies | jump to latest

Einstein couldn't make this theory work to his satisfaction, so it's been abandoned for nearly a century, but it's starting to look like this may solve the problems of so-called "dark energy", "dark matter", inflation, the Hubble tension, etc. and quite possibly lead to a true unified theory, and is picking up steam again. If you're at all interested in quantum physics, cosmology, string theory, loop quantum gravity, etc. and haven't heard of this, I highly recommend researching "teleparallel gravity".

On top of that, recent theories positing that even everything at a quantum level is relative, something I've been contemplating for some time now, are making inroads toward explaining all its weirdness (e.g. entanglement, uncertainty, etc.)

Sure, I may be a bit of a geek, but I find these recent developments exciting.
_________________________________________
Never believe. Always question. Rebuke belief, a.k.a. bias, a.k.a. groupthink, a.k.a. ideology, the bane of skeptical, logical reason.

[–] huwdj (4571) 3 years ago

Teleparallel spacetimes
The crucial new idea, for Einstein, was the introduction of a tetrad field, i.e., a set {X1, X2, X3, X4} of four vector fields defined on all of M such that for every p ∈ M the set {X1(p), X2(p), X3(p), X4(p)} is a basis of TpM, where TpM denotes the fiber over p of the tangent vector bundle TM. Hence, the four-dimensional spacetime manifold M must be a parallelizable manifold. The tetrad field ...

I'm sorry, I think I'll have to wait for the Idiots Guide, preferably in the form of a comic book. To be honest if someone told me the whole wiki page was a randomly generated buzz-word spoof I'd be inclined to believe them.

[–] warrior-poet (1369) 3 years ago

Yeah the math can make one's brain ooze out the ears. The gist of it is that instead of matter just bending spacetime in the classic way we now think about it (e.g. a bowling ball on a trampoline), it twists it, which changes nothing in terms of existing general relativity (meaning it produces identical results as the existing theory that matches what we empirically observe in reality), but mathematically speaking opens up new possibilities, including solutions to most of the existing problems that have stumped scientists for decades.

There's a lot of work to be done to validate the concept, but it's pretty fascinating.

Here's an article that may help explain it in a bit more understandable terms:

https://www.newscientist.com/article/2296320-lost-in-space-time-newsletter-will-a-twisted-universe-save-cosmology/
_________________________________________
Never believe. Always question. Rebuke belief, a.k.a. bias, a.k.a. groupthink, a.k.a. ideology, the bane of skeptical, logical reason.

[–] MovieManCin2 (26342) 3 years ago

Fascinating, but like brother huwdj, I'm gonna have to wait for the Idiot's Guide on this one. BTW, I LOVE your signature!

😎

[–] AmeriGirl26 (15062) 3 years ago

It sounds fascinating :D Now if only they could use it to create artificial gravity and inertial dampeners. That would make space travel sooooo much safer and easier!

[–] actionkamen (23176) 3 years ago

Intertia were so dampened they jumped around like crazy just to make a point.

https://www.slashfilm.com/532113/star-trek-motion-stabilized/