I don’t agree nor disagree.
There are plenty of theories and statements about all kinds of things that are more or less plausible. This is one of them.
It’s just that, this thing of “plausibility” of any given theory is more a feeling of comfort that relates to what we know, or think we know, and how well the theory explains what we know or think we know.
For obvious example, the theory of Anthro Global warming is one that gives frickin moonbats warm glowy feelings all over because all at once they feel justified remembering how hot is was last summer along with how much they hate America, pollution, and capitalist society which they believe would be much better off just buying their ipads for them.
All I am saying that we probably don’t know the full story and nobody is exactly rushing to tell us. In the meantime, we naturally substitute in this “plausibility” thing instead of the “fact” thing. Is it fun? Yes!!
It’s more than comfort in this case, it is a working philosophy. It looks like it is more for the good than it is for the bad.