The very idea that there is a universal "this point in time" is ridiculously antiquated and so pre 1905. Time itself - not in it's cultural or geographical aspect, the very flow and nature of time - is relative, so anything that exists in time is subject to time's relativity.
I understand the minutiae exacting rigors are your forte so that's the only reason I am using this well discerning prism.
On the other hand, if you choose to discard the painstakingly detailed observation and cling to the large scale illusion, you can choose any arbitrary point (say, throw some bell curve mumbo jumbo) as a cutoff for margins of errors, asymptotic limits and practically usable convergences.
Look, I am not disputing adopting a practical approach to matters we don't have clear answers to but we know enough judging from a clear convergence. If some principles are more helpful than others to disallow cannibalism and mayhem, so be it. More power to them. I am an atheist but I see why the church can be useful in filling a vacuum for some people, positively. But I don't buy the bs that the gospel is universal, and Jesus is the only way to god, or even god exists. While Christianity may embody some good methods to live rightly by some standards devised by the highbrows who sit on top of the bell curve (the opposite is also true), I find it laughable to tout the universalism of Christianity. So knocking the bonafide of your universalism in no way indicate my embracing anarchy.
But don't call them universalism for atoms sake.
That's the next thing to invoking god, the ultimate converging point of any universalism.