>>19384953Why you should take this man's idea seriously:
Because he has "plagiarists":
https://www.livescience.com/mirror-universe-explains-dark-matter> Our universe may have a twin that runs backward in timehttps://www.amazon.fr/Janus-Point-Julian-Barbour/dp/1847924727> At the heart of his argument is a new vision of the Big Bang that Barbour calls the Janus Point, from which time flows in two directions, its currents driven by the expansion of the universe and the growth of order in the galaxies, planets, and life itself.And some more guys. Original idea by sakharov
Note that Sabine Hossenfelder has written a paper on bimetric models of gravity.
https://www.jp-petit.org/nouv_f/dessins/2021-may-message-to-Hossenfelder.pdfAnd she called Petit a "plagiarist". This is a spiderman universe, that's for sure. And that's why the idea is so interesting.