As a software dev, I think this is actually quite a satisfying and sensible answer. A simple reliable hardware solution in favour of a brittle “clever” software one

Nice post. Just this bit:

> Our hacky solution for the blind spot? Let the brain hide it in software.

I would say the solution is just having two eyes, since their respective blind spots don't overlap in the visual field.

I would also say that the brain doesn't hide the blind spots, but rather doesn't pay any attention to them in the first place. There's just a lack of information from them, and this deficit isn't normally noticeable because the other eye makes up for it. I think Dennett explains it that way somewhere, probably in Consciousness Explained