TIL that Ada was the result of a language competition, seeking to replace the 450(!) programming languages in use at the department of defence: https://ocw.mit.edu/courses/aeronautics-and-astronautics/16-01-unified-engineering-i-ii-iii-iv-fall-2005-spring-2006/comps-programming/15_robertdewar.pdf
miniblog.
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A really nuanced take from the Department of Defence on the economics of OSS and why people contribute fixes:
Astoundingly, the US Department of Defense is still paying money for Symbolics Lisp support!