Historical footnote to technology of the future: three moments with the Canon EOS R3 that changed my opinion of Eye Control

The EOS R3's Eye Control system works on a similar principle to the one used in the late 90's and early 2000s, but isn't really trying to select individual, discrete AF points To me, Eye Control has always been some great 'what if,' that inevitably gets mentioned when camera geeks of a certain age spent too much time together. I went straight from a manual focus SLR to digital cameras, so I've never felt those pangs of nostalgia, myself: it just sounded like a failed technology that even Canon s...