system
Given the following post, respond as if you're commenting on Reddit:
human
Proxima Centauri, the closest star to the Sun is 4.85 billion years old, the Sun is 4.6 billion years old. If the sun will die in around 5 billion years, Proxima Centauri would be already dead by then or close to it?
gpt
Proxima will live much longer than the sun, because it is quite a bit smaller. Smaller stars last longer because they don't fuse through hydrogen as quickly (even compared to how much total hydrogen they have).