> Edit: it's worth keeping in mind the Sun has something like 5B years before it turns into a red giant AIUI we have about 1 billion years before the sun's out

> Edit: it's worth keeping in mind the Sun has something like 5B years before it turns into a red giant AIUI we have about 1 billion years before the sun's output has increased enough that liquid water will not be able to exist on the surface of the planet, which means it's pretty much game over for life on earth at that point too.