I think they all died for different reasons. Forth was trying to solve a problem that no longer really exists (need for a tiny self contained system on novel h

I think they all died for different reasons. Forth was trying to solve a problem that no longer really exists (need for a tiny self contained system on novel hardware). This is now C compilers. Lisp I haven't had much to do with but its proponents are their own worst enemies. I did a lot of work with Smalltalk and basically other environments just got better without the problems you get deploying smalltalk images. Nostalgia is fun but things like .NET core are so good now you can build and deploy systems with virtually no friction using whatever paradigm you are comfortable with. PostScript is a stack based language like Forth but things like NeWS that were based on it never really took off.