the.com/backup plan
the parachute you pack while insisting the plane won't crash.
means an alternative course of action prepared in advance in case the primary one fails.
from military and engineering jargon from the mid-20th century, where redundancy meant survival — backup systems kept planes flying and rockets launching even when the main system didn't.
nasa loved itapollo missions carried backup systems for nearly everything
psychology twisthaving one can lower motivation to succeed at plan a
business termoften called plan b or contingency planning