[Q&A+] Was the UN-Observable Universe Always UN-Reachable?

BONUS QUESTION STARTS AT 14:54 Watch the video here (with no ads) or on YouTube: https://youtu.be/a0t-G4LKiMU What does "the present" mean in space? Why do we have the laws of Physics we have? Was there a rime when all the Universe was accessible? And in Q&A+, are all black holes perfect spheres? 00:00 Intro 00:25 [@idodekkers9165] Was there a time when all the universe was visible? 06:02 [@madmillion91920110] Does the 'present' actually mean anything a cosmic scale? 09:42 [@LDEKSOCH] Why these particular laws of physics? 14:54 [@georgegherghinescu] Do event horizons of fast rotating black holes have a flattened sphere shape? 17:43 Final thoughts