You say > Obviously the guy in the video was making the implicit assumption that we are talking about local experiments. And yet this is not discussed by Stev

You say > Obviously the guy in the video was making the implicit assumption that we are talking about local experiments. And yet this is not discussed by Steve. And that "obviousness" and "implicitness" is your particular take. I like Steve. I think he has an approach that is both entertaining and educational. But like all educators, he can miss certain things. Unlike certain other science educators though, he does a far better job of providing explanation.