I don't know whether it counts as hyperventilating, but my relatively high level of concern about AI—including #Galactica that LeCun put out there himself— is that not that there is some sort of hard take off.
It's that he and others are creating systems that can flood the zone with shit at a rate that will leave Steve Bannon reeling in shock and awe.
I'm not worried about AI getting too smart. I'm worried about patronizing assholes making AI so stupid that other assholes use it for ill.