I was watching Kyle Hill's video of The Andromeda Paradox on YouTube, I had been thinking about the present time and if there was a universal instant for some time before that and I feel that he didn't really answer the question, because he said that "so what is now? It depends on who you ask." in reference to the implications of instantaneous events in relativity. That we can disagree on which events happens in Andromeda at which time doesn't seem to correlate to the experience of now. These events happened millions of years ago, so the actual now for them wouldn't be affected by how I move at earth, just as the now for me is exactly now completely irrespective of how someone on Andromeda moves relative to me. The intuitive answer would be that the present time for me, would also be the present time for Andromeda, but that poses problems as well, it would mean that the entire Universe is updated all at once. Maybe not that problematic, but it would seem (to my feeble mind) that such a feat would require infinite effort. It does seem to be the case though because: What if instead the Universe is updated at the speed of light. That the now someone on Andromeda is experiencing is actually the time that light from Andromeda reaches us? That would mean that if you had a gigantic telescope pointed to Andromeda and see a "person" there, you would actually be experiencing the same now, synchronized by the speed of light. The problem with that is obviously that the "person" would be millions of years in the past and events have definitely happened there up until the present time (so was he not aware of them then?), but also that if he would take a telescope 2,5 millions of years ago, he would see earth as it was 2,5 millions of years from that which would be (to us) 5 million years ago, and that was definitely not the present time for us 2,5 millions of years ago. Ergo, the universe updates universally all at the same time and there is a universal now irrespective of how we move relative to eachother. You could say that, if I take off at near the speed of light, time moves slower for me and thus faster for someone on earth relative to me. Sure, but it is the same *now* that is moving along slower for you, and it is the same *now* that is moving faster for them, no one notices this of course, but we are still bound by the same present *now*.