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They acquired ITA Software in like 2012. ITA's QPX search engine is largely written in Common Lisp. Unlike Sony, q.v. in another comment thread, Google decided
by bitwize 2y ago
They acquired ITA Software in like 2012. ITA's QPX search engine is largely written in Common Lisp. Unlike Sony, q.v. in another comment thread, Google decided not to mess too much with a good thing and let them keep their Lisp codebase without following bitwize's corollary to Greenspun's Tenth Rule (every sufficiently complicated Common Lisp or Scheme program will eventually be rewritten in C++, Java, or Python).