For a very good reason: let me invite you to contemplate Python performance on 1960-class hardware.
That the implementation of python is fairly slow is a different matter, and high-level languages need not be any slower than, say, C or Fortran, as modern JIT languages demonstrate. It just takes a lot of work to make them fast.
As to "writing out your thoughts", people did design such a language in 1959...
Lisp was also designed during that same period and probably proves your point even better. But 1960's Lisp was as bare-bones as it was high-level; you still had to wrote almost everything yourself from scratch.
as bare-bones as it was high-level
Umm... LISP is elegant and expressive -- you can (and people routinely do) construct complicated environments including DSLs on top of it. But that doesn't make it high-level -- it only makes it a good base for high-level things.
But if you use "high-level" to mean "abstracted away from the hardware" then yes, it was, but that doesn't have much to do with "writing out your thoughts".
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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