If you've never used actors to write concurrent code, you've missed out on a glorious thing. You can even do it in older languages, like C, if you use a good messaging system (like ZeroMQ). See e.g. the CZMQ library, which provides actors in C.
Actors are one of those core models every developer should know, like finite state machines.
Separate memory for the actors and communication via messages sounds like the reinvention of tasks in a classic RTOS (e.g. pSOS, Kadak AMX). Nothing C just could do, stuff which was usually done in C.
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[ 3.2 ms ] story [ 17.9 ms ] threadActors are one of those core models every developer should know, like finite state machines.