I wasn't the one who brought that person up. I only kept with that example because you didn't answer my question when I asked you what would qualify someone to

I wasn't the one who brought that person up. I only kept with that example because you didn't answer my question when I asked you what would qualify someone to have an opinion, or what evidence you imagined could exist, and I didn't want to put words in your mouth by assuming that you also think that eg. Yoshua Bengio or Geoff Hinton or Max Tegmark (or take your pick of anybody) don't have informed opinions either. Or that they have well-reasoned arguments, rather than authoritative opinions, if you think that reason is applicable. I'm only asking for a standard that falls slightly short of "already having built Schrodinger's doomsday weapon and observed whether humanity dies as a result". You can set the bar wherever else you like, please!