It seems to me that if you're going to use functional programming, then you do need to have a way to maintain state and manage threads if you're going to run ge

It seems to me that if you're going to use functional programming, then you do need to have a way to maintain state and manage threads if you're going to run genuinely useful software. So a platform oriented toward functional programming, such as Erlang's BEAM virtual machine, which gives you the thread management and architecture principles to really maximize the power of functional programming, makes the most sense to me.