making a sketch

I actually thought about adding a drawing or two, but I'm not fast with drawing tools and I was too lazy :-(

couldn't hivemind rewriten in C, isn't it C must powerful than Python?

Hivemind consists of two parts: some python wrapper code and a lot of SQL code. The SQL code is the bulk of hivemind. We could eliminate the python wrapper code, but it just doesn't do a lot, so replacing it wouldn't speed things up too much. Probably the most useful thing to do would be to replace the existing python-based web server with a postgresT-based one: we've already found that this speeded up performance in some of the other HAF apps we've created.