Do you think that the Islamic State is an entity which will vanish in the future or not?

In the future? Yes. In the near future? Unlikely. The Islamic State is a reaction to forces that have been at work in the Middle East for some decades now and there are certain parties who think it in their short-term benefit for the Islamic State to continue its existence.

Do you think that their particularly violent brand of jihadism is a worse menace to the sanity waterline than say, other kind of religious movements, past or present?

No. It's violent enough that it's not the sort of thing that makes people insane, but rather the sort of thing that attracts the insane.

Do you buy the idea that fundamentalism can be coupled with technological advancement, so that the future will presents us with Islamic AI's?

It's possible. Terrorists tend to be educated and the most common college degree among them is engineering. There are certainly people with the relevant background to enable technological advancement.

Do you think that the very same idea of rationality can be the subject of existential risk?

No. If rationality ceased to exist tomorrow, someone would just reinvent it later. As long as people are around and civilization remains a possibility, rationality won't be permanently gone.

What do Neoreactionaries think of the Islamic State? After all, it's an exemplar case of the reactionaries in those areas winning big. I know it's only a surface comparison, I'm sincerely curious about what a NR think of the situation.

It happened under Obama's watch, so it's clearly evidence of the failure of leftist politics.