There's a difference between "sufficiently difficult so that a few readers of one person's exposition can't follow it" and "sufficiently difficult so that after being in the public domain for 30 years, the arguments won't have been distilled so as to be accessible to policy makers."
I don't think that the arguments are any more difficult than the arguments for anthropogenic global warming. One could argue that the difficulty of these arguments has been a limiting factor in climate change policy, but I believe that by far the dominant issue has been misaligned incentives, though I'd concede that this is not immediately obvious.
One open question in AI risk strategy is: Can we trust the world's elite decision-makers (hereafter "elites") to navigate the creation of human-level AI (and beyond) just fine, without the kinds of special efforts that e.g. Bostrom and Yudkowsky think are needed?
Some reasons for concern include:
But if you were trying to argue for hope, you might argue along these lines (presented for the sake of argument; I don't actually endorse this argument):
The basic structure of this 'argument for hope' is due to Carl Shulman, though he doesn't necessarily endorse the details. (Also, it's just a rough argument, and as stated is not deductively valid.)
Personally, I am not very comforted by this argument because:
Obviously, there's a lot more for me to spell out here, and some of it may be unclear. The reason I'm posting these thoughts in such a rough state is so that MIRI can get some help on our research into this question.
In particular, I'd like to know: