So they say. If only someone had found a way of demonstrating that unity and multiplicity were in some way equally fundamental to reality, however paradoxical that might seem. Say, for example, that the whole shebang – life, the universe, everything! – had been made by Somebody whose very nature embraced both one-ness and many-ness. But how “many”? Hmm, well “two”-ness would just imply duality. To imply true multiplicity and diversity you’d need at least “three”. And you’d not really gain much by adding more than three to that picture. So, “three”-ness would seem to do the trick.
You laugh, fine. But nobody has ever done better, no matter how many polysyllables they spun.