I remember an employee of mine, who was possibly the best engineer I ever knew, wrote up a specification document for his own vignetting algorithm, in Postscript.

The algorithm provided a 100X performance improvement over the classic Monte Carlo stuff that Tokyo had written.

The charts in the document were executable Postscript, running his algorithm.

That got the attention of the Ph.Ds in Tokyo. He was a high school-educated neurodivergent.