>I think the 4x/8x expansion (16x/64x the pixels!) is pushing the tech too far. I bet it would look great at <2x.

I believe this applies to every upscale model released in the past 8 years, yet undeterred by this scientists keep pushing on, sometimes even claiming 16x upscaling. Though this might be the first one that is pretty close to holding up at 4x in my opinion, which is not something I've seen often.