I interpreted the OP's comment to refer to the article's theme of consciousness transfer/ascension rather than countering the effects of aging, which as you poi

I interpreted the OP's comment to refer to the article's theme of consciousness transfer/ascension rather than countering the effects of aging, which as you point out is different. In that context many of these arguments seem moot. Even the idea that "More people make more progress faster" becomes speculative as "people" would no longer be constrained by genetics to specific distributions of neurons.