I'm amazed at how much we humans are going to learn over the next thousand years. The way a lot of people talk, it's dubious that we'll survive that long. I disagree. Whatever catastrophe shows up, there are such a HUGE number of humans in the world today that I feel sure that a sufficient set will survive to keep human science going. There's never been a plague in the past that took more than one-third of the total population. And even if HALF of everyone died in some catastrophe, OR TWO-THIRDS, there'd still be plenty left over. No, the end of the world isn't going to come quite yet. We still have quite a bit of time. And in that time the fruits of human genius will be many and very, very impressive. To imagine what we'll be in a thousand years, we should think of how people lived a thousand years ago. Quite a change since then. And the change in the future will be even more intense. Take care!