https://www.finance101.com/expensive-mistakes/
https://www.rd.com/list/most-expensive-mistakes-ever-made/
https://historyofyesterday.com/13-most-expensive-mistakes-in-history-2df5f1d3546b
https://raygun.com/blog/costly-software-errors-history/
https://en.wikipedia.org/wiki/List_of_military_disasters
https://www.thefiscaltimes.com/Articles/2013/02/26/The-Pentagons-Incredible-1-5-Trillion-Mistake
https://en.wikipedia.org/wiki/NOAA-19#Damage_during_manufacture
https://en.wikipedia.org/wiki/Lockheed_Martin_F-35_Lightning_II_development#Concerns_over_performance_and_safety
https://en.wikipedia.org/wiki/MIM-104_Patriot#Failure_at_Dhahran
https://en.wikipedia.org/wiki/Mars_Climate_Orbiter
https://en.wikipedia.org/wiki/Ariane_5
https://en.wikipedia.org/wiki/S-80_Plus-class_submarine
https://en.wikipedia.org/wiki/Mariner_1
https://en.wikipedia.org/wiki/Alaska_Purchase
https://en.wikipedia.org/wiki/2008_Andersen_Air_Force_Base_B-2_accident
https://en.wikipedia.org/wiki/Falklands_War
https://en.wikipedia.org/wiki/Henry_Tandey
https://en.wikipedia.org/wiki/Operation_Barbarossa
https://en.wikipedia.org/wiki/Zimmermann_Telegram