[erlang-questions] Process scope variable

[Imants Cekusins]

> I at least was talking about things the system can check for you.

With this approach extensive type checks can be done on assignment.

>  Erlang code *realistically* like the code in question could have been written.

these are almost textbook-like OTP callback modules which call methods
in worker modules, which in turn call other worker modules. nothing
fancy.

> Do you have measurements for the cost of putting state in a
separate process yet?

good point. it will take time. however this is time well spent.
checking signatures which are likely to change was wasted time.