> How do we know that the brain might not use a completely different architecture since computationally implementable NNs have many artificial limitations. not

> How do we know that the brain might not use a completely different architecture since computationally implementable NNs have many artificial limitations. not just ANNs have limitations, but biological networks as well. Degeneracy is biology's version of "more than one way to do it" and it's present everywhere; in other words, different brain networks can implement same function. One example of this is that when you write your signature with your foot, it shows similar characteristics as when you write with your hand. Degeneracy and complexity in biological systems is a good read in this direction: http://www.pnas.org/content/pnas/98/24/13763.full.pdf http://www.pnas.org/content/pnas/98/24/13763.full.pdf