[reallydontask]

> what is the meaning of "too late"?

I take it to mean for the human race to continue its existence in roughly the same way we've become accustomed over the past century or so (though the time frame will vary according to people, I suppose.

>maybe some amebas will evolve into something more peaceful that the savages we have become.

that could well be the case or we might be in this situation in a few billion years