[amscanne]

I don’t think the connections between the receptors (rods and cones) and the ganglion cells are “trainable”? You seem to be assuming Brain-like learning functionality inside the eye. I’m not a biologist, but I don’t think this is the case unless you’re considering evolution as training. If it were true, wouldn’t people have wildly varying fovea? I feel that these connections are anatomical and not learned in exactly the same way the number of arms, legs or teeth is not trainable.

Regarding the nanosecond point — I don’t believe that’s how information works, and there should be many obvious problems with the idea of an infinite information channel not to mention the obvious practical ones (propagation variability, lack of a reference point, etc.). There may be some optimizations, but generally the frequency (or frequency bandwidth, which is where the generic computing term comes from) determines the information capacity, and phase modulation doesn’t magically change this (it is actually what is used in many radio systems).