In reply to Defining notan's edge:
I'm certainly not nearly as versed in the science as you are, and
you know I'm a believer in science. But it has to make sense, and
the core questions (like how saccades can far exceed the acuity
of the fovea) have to be answered before we go much deeper.
I guess there are many levels of "answers", and we each try
to grasp the level that can best serve our near-term future.
hhp