Does KFORTH support recursion?
Yes it does (see the example above). This was the biggest limitation of my previous attempts at an ALife simulator. Previous versions used a gross half-baked assembly language with a fixed sized stack (stack size=4). I strongly believe that supporting recursion is paramount to evolving creatures with impressive behaviors. So I am optimistic that “Evolve 4.0” with KFORTH should succeed as an ALife simulator.