A completely different language, a decade of development to Perl 6, and Python eating its lunch in the meantime. Perl is often called a write only language, and there's Python with

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Even as an experienced developer who even owned CPAN modules and was very familiar with the Unix ways, Python was a no-brainer.

I mention this on light of the article's claim that this has to do with "a new generation of programmers brought up on … I don’t know, Microsoft systems, Visual Basic and Java". No. The new languages that appeared were just so much much better.