So most responses are things that you might to to be remembered in 1000 years, I'm going to take a different tack, things that will most likely not be undone in

So most responses are things that you might to to be remembered in 1000 years, I'm going to take a different tack, things that will most likely not be undone in that time. One of the first things we have to throw out is the reliance on people. You can't statistically rely on 10-12 generations of people to do the same thing that you intended today. Also it is very unlikely that any contract you make today will exist and be enforceable in 1000 years. This eliminates setting up trusts, preserves, buying land and doing something with it, or any other long term project. And anyways something like this will take a number of people to be successful, why should you get all of the credit? Next lets talk about war. Unless the war wipes out a significant portion of the population, I'm talking WAY more then the 3% of the population WW2 killed, most of the damage done will either recover, or change to be mitigated. So what's left? You could do something that changes maps. The scope of this is VERY large, like build an island large. But there are cases where enough labor has been put in to permanently divert rivers, not just a damn. Or build "natural" structures that wind and rain haven't destroyed yet You could do something that changes humans place in the universe. Create a viable form of interstellar travel, find a way to represent a life without a body (computer sim?), or maybe change our planet (before we escape it) so it's not habitual for humans as we are now. For me personally I think it's enough to contribute to science and knowledge as a whole. I recognize that even if I have a profound discovery, given enough time it will be taught to 12th graders, see calculus. It's really the collection of discoveries that lead to profound discoveries that are the real MVPs.