Wait, does this simulate fly behavior by simulating a fly brain?

Edit: it looks it simulates pieces of a fly brain

The prepared graph retains 166,700 annotated non-glial entries and all 25,582,938 connection rows between them

Two 96 x 96 cameras provide approximate retinal input.

But at certain points it looks like the neural network hands off to human-programmed stuff

Descending activity is converted to gait commands, while FlyGym supplies an engineered walking controller. Motor neurons are not individually mapped to muscles. In hybrid mode, food search, behavioral arbitration, and escape detection also contain engineered logic.