Personally, I don't think SI is arrogant, but rather that should would harder to publish books/papers so that they would be more accepted by the general scientific (and non-scientific, even) community. Not that I think think that they aren't trying already...
I intended Leveling Up in Rationality to communicate this:
But some people seem to have read it and heard this instead:
This failure (on my part) fits into a larger pattern of the Singularity Institute seeming too arrogant and (perhaps) being too arrogant. As one friend recently told me:
So, I have a few questions: