Comment by dopu

Our technology is finally getting into the realm of things where something like this might be made possible, for small brains such as those of fruit flies or zebrafish. Already we can perform near-whole-brain recordings of these animals using 2-photon technology. And with EM reconstruction methods advancing at such a rapid pace, very soon we'll be able to acquire a picture of what an entire brain's structure (down to the synapse) and activity across all these structures looks like.