It’s very strange. I had a vivid dream, only about 5 hours ago, where I was debating the drawbacks of TAA with some scientists in a lab (likely because Half Life has been in the news this week). I think I dream about rendering algorithms once every several years.
And now today there’s this post and your comment here in the front page.
As randomly connected graphs fill in, they quickly must produce patterns. The patterns are non-random (thus they are a pattern!), but essentially "chosen" from all possible patterns randomly.
Which is another way of saying: a proof of God would be going through life without a constant stream of surprisingly meaningful coincidences.
Unbiased reality is inherently a blind but inventive "Creator".
Yes, on high density displays this is very much possible. Eye based SSAA, the worse your prescription the better the quality. On my Pixel 9 Pro, the no AA circle demo is perfect on native 1440p resolution without AA. But dense foliage in 3D scenes will definitely ruin that. Motion induced shimmering is inescapable I think, without some kind of filtering.
No AA on 4K/high-DPI has been almost perfect for me, but I still occasionally notice thin edges flickering and objects getting dithered when fading in or out. It's definitely better than TAA though, which just ends up smearing everything that moves.