“It’s just a jump to the left… it’s a jump to the ri-ight🎵”

…And that’s all it takes to witness two completely different views of what ‘right now’ means:

“The Andromeda paradox, proposed by physicist Roger Penrose, is a thought experiment in relativity that highlights how simultaneity depends on an observer’s motion. It imagines two people walking past each other on Earth: one toward the Andromeda galaxy and one away. Because of special relativity, the plane of simultaneity for each observer tilts slightly, meaning that the events they consider “happening right now” in Andromeda could differ by entire days. This illustrates that what is considered the present in distant regions of space is relative to an observer’s motion.” (ChatGPT)

Here is my thought experiment based on the Andromeda paradox:

If we were to witness a supernova of a star hundreds of light years away, could we send a rocket hurling at a high speed away from that event and capture the event happening again? Could we re-witness the supernova, a past event that happened many years ago, but from farther away? Would it be possible that from that perspective the event has not been witnessed yet, and so we can ‘get ahead of it’ focus our cameras on it, and wait for it to happen again, just for the first time from that relative perspective?

My head hurts a bit trying to make sense of this, but my hunch is that it would be possible. So instead of the Andromeda paradox, it’s more like the Andromeda mirror, bouncing back the same light but at a slightly later time than the present… which already is what a mirror does.