archival concerns that far along very quickly balloon into abstract scifi fantasyland. like, in 500, 1000, 5000 years, will the issue be that no one remembers specifically how to manufacture/use specific cpu architectures, or will the issue be that no human alive actually knows what a cpu is or how it works?
for my money, forget worrying about one architecture over another. i think they're all going to be forgotten someday. we have to hedge our bets on the tried and true method: rosetta stone the fuck out of it. if humans are alive, they'll have a language, and that language will be descended from one today, so engrave a shitton of rocks with identical text in all the languages we know and put them all over the place. dictionaires and instructions to fix/build modern computers and read the files on them.
then,
make a hard drive that lasts 5000 years ,
like, physically.
its at this point i question if all this fuss is even worth it. like whos gonna go through all this data anyway. whats it matter when 10000 years later someone ELSE has to dig up the remains of THOSE people and figure all this stuff out again. whatever. as long as my shit lasts the years i'm here i don't know that i care too much