So does this combination procedural language + neural net architecture allow random modification of FORTH words or does it only allow random use of pre-defined

So does this combination procedural language + neural net architecture allow random modification of FORTH words or does it only allow random use of pre-defined subroutines with random values for parameters? Random modification / creation of random algorithms sounds like Doug Lenat's Eurisko. The use of random values for parameters in a pre-defined subroutine sounds like a contraint propagation language like Prolog. I guess the random use of a pre-defined set of subroutines is similar to a system that does load balancing for choice between various algorithms instead of different machines.