You're right that I've been unfairly dismissive of him, and made my objections somewhat too bluntly. At least it's fostered a discussion.

However, let me be clear: how he did it is the only thing I care about. I am not convinced that the threat of superintelligence merits our resources compared to other concrete problems. To me the experiment is not meaninguflly different to stories of the temptation of christ in the desert. Except more fun than that story, because yudowsky is a more interesting character than satan.

EDIT: if rationality is about winning, what could be simpler than a game where you just keep repeating the same word in order to win? It seems like almost the base-case for rationality, if one accepts that definition.

I would submit that an unstated definition of rationality is "dealing with difficult, complex situations in ones life algorithmically" ie. most of HPMOR, the large amounts of self-help stuff on LR. Someone who had internalized this stuff would be more vulnerable than the average population to "spock-style bullshit", to reuse that unfortunate phrase.