Does all this shader really get around is the problem of display inversion?

From Gemini: "Display inversion is the process of alternating the voltage between positive and negative for each pixel on an LCD screen to prevent damage. This process is called polarity inversion."

If display manufacturers knocked that on the head for certain scenarios then surely we could just have a simple block of horizontal screen scrolling down the display at high refresh rates?

Phosphor fall off as far as can be seen in Slo Mo Guys is quite a small effect not on the scale of this shader.

We need display manufacturers to provide a refresh cycle that is agnostic of the incoming signal hz sent down the cable AND to either provide shader support (ideally) at the displays hz OR to implement this shader.

There really is no need for an expensive RetroTink if we had this. Some manufacturer must be able to do it and the rest would follow.

Yeah they are two different effects. Theres motion blur on individual objects that you want (as human eyes see/have) then there is full screen motion blur that is due to the display technology (lcd,oled etc) that you dont want (as human eyes dont see/have). CRTs dont have this motion blur as the screen is blank most of the time - see slo mo guys on youtube for crt displays.

Not sure this really holds: there is no symbolic LEAN type system in any animal brain as far as I can tell. I do think the point about the AI needs to sanity check is right. I imagine all this is will fall out from the visual, audio and other senses feedback loops though. I dont see the fundamentals needing explicit algebraic reasoning - that will surely come later.