I was wondering about this question recently, so I was happy to get a dissenting opinion via Forbes: https://www.forbes.com/sites/startswithabang/2020/10/08/no-roger-penrose-we-... But the tone of the Forbes article is too businesslike for my taste, and does it mention that Penrose himself describes the idea as "crazy"? See also: https://www.youtube.com/watch?v=YTttUigXulk When you watch this video, how can you help but wonder about the incredible mystery of what exactly is going on in the background out there? Maybe universal reincarnation is a plausible cosmogony? We don't know. Fifty or one hundred years from now we could have better gravity detection, and a better idea of what is going on behind (or before) the CMB. Until then... Anyways, congratulations Penrose! More and more cheers and congratulations for unexcelled creativity! --Brad