I addressed the entire concept of the talk, and made other relevant points. The correct response to "let me tell you something I can't possibly know" isn't to argue the points within that frame.

If you see a talk like: "How we will develop diplomacy with the rat-people of TRAPPIST-5." you don't have to make some argument about super-earths and gravity and the rocket equation. You can just point out it's absurd to pretend to know something like whether there are rat-people there.

Either way, it isn't flag-able!