The synapse isn't the complex part of the brain. The synapse is just the part of the neuron membrane that is responsible for input and output. The complex par

The synapse isn't the complex part of the brain. The synapse is just the part of the neuron membrane that is responsible for input and output. The complex part is how the synapse affects potentiality inside the neuron itself. The difference between a transistor and a neuron is that a transistor has discrete, digital states. A neuron is much less deterministic than that. If you want to try to find a part of the brain that may represent a transistor, it would be a network of a number of specific neurons that fire (or just as importantly, dont fire) within an even larger superstructure. Ultimately, you just can't draw a clean line between a transistor and the brain at all.