Larry Haber said so!! Go listen to the show!!!
Paula, dear, ...it doesn't matter WHO says so. The WHAT is what is important.
______ said so.
______ already knows how to identify him. It's all covered.
Unless there is some kind of clear evidence like I mentioned above, it doesn't matter who says so. The proof/evidence must speak for itself.
If/When that happens, and when considering the context, it is likely to lead to questions of other things. This is what I mean when I say GREAT BIG CAN OF WORMS.
The same goes for you speaking of the reality of communication through time. Could what you're saying be true? Sure. But there's no way of knowing that it is definitely true without proof.