Agreed. The “we all live happily ever after” inference does contradict Deutsch’s idea, which I noticed a little after writing this, and so corrected the wording (before seeing your comment) thusly:
(Or, presumably, so Optimism demands, since the AIs are unpredictable, and technology.)
No. Deutsch’s “principle of optimism” states:
optimism demands that they can live happily ever after if they learn how. it does not predict that they will.
Agreed. The “we all live happily ever after” inference does contradict Deutsch’s idea, which I noticed a little after writing this, and so corrected the wording (before seeing your comment) thusly: