Seeing red

[bennyboy]

Logic gates are primarily implemented using [/font][/color]diodes or transistors acting as electronic switches, but can also be constructed using vacuum tubes, electromagnetic relays (relay logic), fluidic logic, pneumatic logic, optics, molecules, or even mechanical elements. With amplification, logic gates can be cascaded in the same way that Boolean functions can be composed, allowing the construction of a physical model of all of Boolean logic, and therefore, all of the algorithms and mathematics that can be described with Boolean logic.

Okay, so we're talking exclusively about analog or chaotic systems that are constrained in such a way that they should yield consistent boolean results. If so, I am highly skeptical about whether the brain can be modeled using any number of logic gates. I really think chaos computing is more powerful than that, and is different in important ways-- although articles like
https://en.wikipedia.org/wiki/Chaos_computing

draw parallels to boolean logic anyway.