Since I'm embarrassed by how many votes this is getting without any citation, I'll just point out that I probably first learned about it from something Tory Bru

Since I'm embarrassed by how many votes this is getting without any citation, I'll just point out that I probably first learned about it from something Tory Bruno (CEO of ULA, the company that launches the Atlas and Delta rockets) said, seen here: https://twitter.com/spaceflightnow/status/776854635055284224 https://twitter.com/spaceflightnow/status/776854635055284224 This morning, it was posted by Doug Wheelock: https://twitter.com/Astro_Wheels/status/832972785152573441 https://twitter.com/Astro_Wheels/status/832972785152573441 It appears to be said by many people before them, in different forms - I can't find any information about who first coined the phrase.