[iaaan]

As someone who does a lot of Go, glancing over Factor's syntax in your links makes my eyes glaze over. I'm sure it's perfectly understandable if you take the time to learn it, but languages like Go and Python have the benefit of being nearly immediately understandable for anyone with prior experience

[johnisgood]

I do love Go for that. Python less so, lots of syntactic sugar, less immediately understandable than Go, IMO, just the list comprehension is less understandable, i.e. I would rather have a for loop when I am reading a reference implementation.

As for Factor, of course, it is a concatenative language. You not only have to learn it, your brain probably has to work in a certain way. Common Lisp vs. Forth vs. Haskell vs. C. They are all at the different end of a spectrum I would say.