This is all so confusing! At #854 I put forward a theory that could fit (sort of) - the trouble is there are so many possibilities, all with some degree of plausibility, but obviously they can't all be true. Then there are probabilities, of course some will be more and some will be less likely, but something being extremely unlikely doesn't mean that it's not true. And vice versa. And we all can't help but bring our own biases and experience to our thoughts, ideas and theories. And even if we all agreed, we could still all be totally wrong! Grrr!