I’d say you can still kiss your reflection since just about everything emits photons. Just not always in the visible spectrum.

And mirrors don’t reflect every photon on every spectrum either. Quite contrarily… many forms of glasses/plastics (and the backings layered on those materials) are completely transparent in many wavelengths.

But see this is [one of] my point exactly. If he left some caveat like that in the damn tweets (because he should understand the caveats)… People who are actually interested but don’t know might catch an on and actually try to learn the science about it. Rather than the nonsense he just tweets. People who view him as “an expert” will take it at face value… and not question it. He should be leading future scientist to actually understand and learn. Not this drivel.

Edit: [one of]… I should clarify that it wasn’t my only point. But just the one that the specific mentioned tweet should have also been doing if he really wants to be an “educator”.