The connectome aims to understand the structure of nervous tissue down to individual synapses and synaptic vesicles.

“And that is really trying to understand the structure of nervous tissue at a scale that's very, very fine. - Smaller than a millimeter. - Way smaller than a millimeter, a nanometer or less, as that's 1,000 times smaller, or it's actually a million times smaller. So really, really tiny on the scale of individual synapses between individual neurons or even smaller like the individual synaptic vesicles containing little packets of neurotransmitter they're going to get it released to allow one neuron to communicate to the next.”