In 250 million years, whatever is around by then, if things are left alone. Hominids has been around 5M years, mankind 200k years, civilization 10-20k years, an

In 250 million years, whatever is around by then, if things are left alone. Hominids has been around 5M years, mankind 200k years, civilization 10-20k years, and global civilization less than 200 years. And in the last 100 years we changed enough the planet to start changing it into an hostile environment for mankind and civilization. I don't know if we will be around in 100 years and in what conditions, because what we are doing with climate and the irresponsible way that we handle the power we achieved (nuclear, technology, internet, etc) may be a threat for us. They may as well warn us about the dangers of the Sun turning into a red giant for what it will affect mankind.