A sadly typical flavor of essay: a lisp enthusiast who believes that learning lisp has made them into a uniquely Very Smart Boy who can think thoughts denied from programmers who use other languages. The "blub" paper asserts that there exists a linear hierarchy of goodness and expressiveness in languages, where lisp, by virtue of its shapelessness, exemplifies the pinnacle of expressiveness.
This is a profound misapprehension of the nature of language design. Languages exist within contexts, and embody tradeoffs. It is possible- common, even- to fully grasp the capabilities of a language like lisp and still find it inappropriate or undesirable for a given task. Pick any given context- safety-critical medical applications, constrained programming for microcontrollers or GPUs, livecoding environments where saving keystrokes is king- and you can find specialized languages with novel tools, execution models, and affordances. Perhaps it never crossed Paul Graham's mind that lisp itself might be a "blub" to others, in other situations.
The idea of a linear hierarchy in languages is the true flatlander mindset.
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