The connectome is a map of individual neurones. The projectome is a map of how larger regions interconnect. Particularly the relative strength of the links.
It’s the difference between a detailed road map vs the relative road capacity between countries. It cuts out a lot of fine detail to see larger patterns. Both are useful, but in different ways.
It depends.
One of the problems with many radiators is that they heat a relatively small amount of air to a high temperature. Hot air then rises. This creates a warm layer up a ceiling height but leaves it cooler at lower levels. By using forced airflow, you can heat a larger amount of air to a lower temperature. This results in a more even distribution of heat.
This is also why ceiling fans can help in the winter. They can stir the hot air back down into the rest of the room.
The only flaw I can see here is the fan’s direction. It’s pushing hot air up. A radiator cover that redirects it sideways would make a significant difference.
Provisio, I have not read up on this particular experience.
Fruit flies, as used in labs are not like their wild cousins. They have been bred to be exceptionally consistent, since this makes X-Y experiments easier. If you take genetically identical eggs, and raise them in effectively identical conditions, you get almost the same wiring.
There will still be areas of variability, but a lot will be conserved. This is likely an “average” wiring. Once you have even an approximate baseline, you can vary things and see how the wiring adapted.