The only name in this list that gives me pause is Daniel Dennett. At least he has a philosopher’s historical perspective on the challenges ahead.

Very few neuroscientists as signers. Perhaps they know better.

For me the basic sociopolitical climate today (and for the last 120 years) is at an existential boil. This is not to say that birthing AGIs is not frightening, but just to say that many real features of today are just as, or even more frightening.