Alexander,
Great essay, I love your thinking. I can't believe so few have shown interest. Glad I got to it in time to give your score a well deserved new form!
I think the greatest importance of the plan will be to develop space friendly bodies. All this talk of colonizing space is pie in the sky without a major leap forward in understanding nature and an equivalent one in fast evolution of bodies that can exist elsewhere than earth. I think between our essays we've cracked it! (I hope you'll get to speed-read and score mine, though with 60 scores you may not affect it much!)
I was a bit worried about Alhzeimers. You did cover that but the solution did leave one little concern; Should we not improve the ability of our current brains to assess cause and compute effects BEFORE we 'clone' them? (I don't think that's a problem for your scheme).
My favourite bit, right in line with the derivation of relativity consistent with the classical description of QM Bob and Alice describe in mine;
"...prior to that, Space-Time was devoid of any here, or any now. In so doing, we have introduced Information into time and space. If another Observer (2) is introduced; then it introduces its own Here and Now - and 1's Here and Now becomes There and Then. It should be noted that what we call the difference between here and there is Space; and what we call the difference between now and then is Time. Space-Time is the way an observer "sees" things. Like wearing Space-Time glasses."
How refreshing after having the odd dyed in the wool relativist repeating the old myths over and over. Top marks!
Best of luck making the final cut.
Peter