Because we're maybe 10-20 iterations away (250 years, tops?) from brain uploads and everlasting life harvesting the energy of distant stars. Or at least our descendants are.

You can predict 250 years in the future now and when 'brain uploads' will happen and when everlasting life will happen and when the harvesting of distant stars will happen?

That's impressive because you've made predictions a year into the future and they never came true.