> Clearly the brain works VASTLY differently and more efficiently than current
> computers - are you seriously disputing that?

It is very clear that in many respects the brain is much less efficient than
current digital computers and software.

It is more energy-efficient by and large, as Read Montague has argued ...
but OTOH sometimes it is waaaay less algorithmically efficient

For instance, in spite of its generally high energy efficiency, my brain wastes
a lot more energy calculating 969695775755/ 88844444 than my computer
does.

And e.g. visual cortex, while energy-efficient, is horribly algorithmically
inefficient, involving e.g. masses of highly erroneous motion-sensing neurons
whose results are averaged together to give reasonably accurate values..

-- Ben

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