system
Given the following post, respond as if you're commenting on Reddit:
human
[Halo] Is immortality viable?

Could the average public potentially live thousands of years provided they don't get killed or sick? Or is human lifespan the same as it is today, for some reason?
gpt
Are you asking if humans in 2552 are immortal? No, though the lifespan is likely a fair bit longer.

As for Prehistoric humanity. They weren't immortal either, though they did have a form of extreme longevity.