[Alamo-Girl]

I'm thrilled to see this shift from the Kaluza/Klein compactification models (string theory et al) to higher dimensional dynamics.

Another recent article was considering higher dimensional geometry in lieu of the big bang/inflationary model. And this particular article is running directly towards Max Tegmark's Level IV parallel universe model, roughly that what we experience in 4D is a manifestation of mathematical structures which actually do exist outside of space and time.

P.S. Wesson is a pioneer physicist in higher dimensional dynamics. His theories suggest a higher time-like dimension, that what we observe as reality in 4D could be as little as a single particle in a higher dimension, multiply imaged 10⁸⁰ times.

And, of course, he also proposed that physical death in that geometry could simply be a phase shift.

[MHGinTN]

I just keep thinking, “If they continue to tumble this problem around, they will eventually see it as the effect of phase shifts in the variable expressions of dimension space and dimension time, causing the ‘tensions’ between the expressed continua and the about to be expressed” ... but then, I'm a dreamer, and my tensor calculus is not so sharp anymore.

[betty boop]

I'm thrilled to see this shift from the Kaluza/Klein compactification models (string theory et al) to higher dimensional dynamics.

Me too!!!

I'm fascinated by the ideas that space and time are not "fundamental" properties of the universe; rather they are emergent properties; and that locality and unitarity are not fundamental aspects of nature. Also that the amplituhedron geometry hints "at an underlying, coherent mathematical structure behind quantum field theory," indeed behind/beyond 4D spacetime itself.

Revolutionary ideas! It will be fascinating to see how they play out.