Gravity: Trad & Quantum gravity combine in 5 dimensions ??

[Nik_SpeakerToCats]

Nik-Note: Risk of Prompt Migraine...

This theorist reckons the 'conflicts' between 'trad' and 'Quantized' gravity vanish when studied in five (5) dimensions.
And, in passing, make sense of 'Arrow of Time'.

Making sense of quantum gravity in five dimensions
https://phys.org/news/2026-01-quantum-g ... sions.html

Reference:
https://www.nature.com/articles/s41598-025-32860-8

Quote:
A classical theory beyond four dimensions
In a recent work, published in Scientific Reports, I explore a different way of thinking about quantum physics and gravity. Instead of trying to make gravity quantum, I propose that both quantum effects and gravity may arise from a deeper, classical structure that exists in more than four dimensions.

My motivation is straightforward: If Bell's theorem tells us that intuitive, classical explanations of quantum effects cannot work within ordinary four-dimensional space and time, then perhaps the problem lies with spacetime itself. I therefore extend spacetime by adding a fifth dimension that acts as an evolution parameter. This allows familiar four-dimensional spacetime to evolve in a new way and opens up new possibilities for explaining both quantum behavior and gravity using classical ideas.

A central idea of the theory is that particles are not fixed objects from the start. Instead, they are built from paths, called "worldlines," that gradually form as this extra parameter advances. While these worldlines may initially show a variety of dynamics, they slowly "lock in" as the evolution progresses, until a stable, classical world emerges—the world we experience in everyday life. These dynamics are crucial for producing the strange outcomes of quantum mechanics from the perspective of an observer. However, in the deeper five-dimensional picture, the underlying processes remain entirely classical.
/

Note he makes several 'testable' claims, to falsify this approach.

Nik-Note: I scoured his work until my head *hurt*, but found nary a hint that this might provide any route to artificial control and/or generation of gravity.
YMMV...

[Craiglxviii]

Nik, as soon as I saw the topic I knew a) it was you and b) you’d be tying my brain in knots! this is fascinating, thank you!

[Sukhoiman]

He did give an apt warning right at the start

[Craiglxviii]

He did give an apt warning right at the start

I’m glad he did!