[gnaritas]

It's not about the newest number being the best number, it's simply an older number that changes our idea of the timeline. So yes, it there is validity in it because it's "new" data that differs from our existing data giving us a fuller understanding of the timeline.

And I think you're confusing me with the OP, I didn't ask any question at all, nor do I think the OP's question is legitimate. The OP is assuming incorrectly that current science states definitively when homo sapiens began, but it doesn't, it merely says here's the oldest evidence we currently have so we're at least this old; science never said we're not older. As we cannot time travel, we can never definitively say when homo sapiens began, it will always be an estimate based on the oldest fossils found and as such that estimate can be changed anytime new fossils are found that pre-date the existing oldest fossil.