Spacetime is doomed

[Miken]

The OP links to the minutes of the meeting. I will read again to try to understand what you are saying.

But are you contesting the main point that Spacetime is not the fundamental structure?

I neglected to link to the full transcript of the presentation that is summarized poorly in the minutes.
Transcript: Nima Arkani-Hamed | Mar 18, 2007 | TVO.org

What was being said was that our present concept of spacetime is insufficient and some more advanced concept is needed, There is obviously something there underneath the reality we see. But it is not what we currently think it is,

 

[atanu]

https://www.quantamagazine.org/big-bounce-simulations-challenge-the-big-bang-20200804/?fbclid=IwAR23SInty4SuhE-lkCk-7oR7qGxkY5uJYd4N5LTekTPkRgztAnMEBw8l_-Q

So. The Big Bang is passé and so is Steady State Eternal Inflation theory of Cosmology. The Gravitational modelling now suggests that the universe perhaps expands and contracts alternatively and is without a beginning.

I find it interesting to combine two thoughts: that the Spacetime is not the fundamental structure and that the Spacetime (the universe) is without beginning.

...

 

[atanu]

I neglected to link to the full transcript of the presentation that is summarized poorly in the minutes.
Transcript: Nima Arkani-Hamed | Mar 18, 2007 | TVO.org

What was being said was that our present concept of spacetime is insufficient and some more advanced concept is needed, There is obviously something there underneath the reality we see. But it is not what we currently think it is,

Yes. That is what I understand.