> How do you know? Hmm, yes, I don't. I just honestly don't get why that galaxy collision is concerning. What's the concern? For whom? Four billion years i

> How do you know? Hmm, yes, I don't. I just honestly don't get why that galaxy collision is concerning. What's the concern? For whom? Four billion years is very, very long compared to humankind's evolutional history. Homo may be 2 My old, that's 1% of the time it takes the sun to rotate a single time around the center of the galaxy. Sol completed already ~20 rotations since it exists. Homo's whole history is 1/2000th the time ntil Andromeda will arrive. So, what's the concern? Humankind will not exist for many, many hundreds of millions of years. > It's not far fetched to think that, they will continue to find ways to shape the world according to their needs. Humans fixing Earth's and Humanity's problems is totally out of character. I did not even consider it. Earth's death is certain. Sun's death is certain. Galaxy collision might even go unnoticed for quite a while -- it's not like millions of stars would crash into each other -- very unlikely. It's more like a reshaping, but what's concerning about that? More supernovas around us? Yeah, maybe. But why is it more concerning that any other demise? It is an interesting question, I think, about perceived danger.