Yes, and we have to guard against knowledge regressions (dark ages) too. It is critical that we preserve our human tradition of passing inter-generational knowl

Yes, and we have to guard against knowledge regressions (dark ages) too. It is critical that we preserve our human tradition of passing inter-generational knowledge to the next generation. As an example, I see several older nerds complain that the new generation keeps re-inventing the same-old same-old tech, and I do see a small grain of truth there, but by and large I think we have successfully managed to transfer our knowledge and experience to the new generation so that they can push the boundaries even further. I remember reading (think it was Neil Tyson) that at some point in the future, if the universe continues at its current rate of expansion, we (earth) might arrive at a future state where we cannot detect the cosmic b/g radiation and other markers which confirm certain physical characteristics of the universe. I wonder if the future humans will accept that the humans who came before them really observed this phenomenon and that they can rely on that data :)