Re: evolution
The human species could have only 800,000 years to live, provided it were a speicies like all the other ones.
But it is not and I'm sure it will be far far shorter than that.
But it won't be forgotten, as we would have developed our successor and probably not through genetic engineering (because of ethical issues), but through artificial intelligence, cybernetics.
Then, perhaps, could we become part of a Galactic network.
Raoul