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> They had a backup plan for getting kicked off AWS, supposedly.

As the saying goes, "one backup is zero backups."

We have a similar saying in my country: One backup is no backup, two backups are a half backup, and three backups are a full backup!

is this induction, but in opposite direction?

N+1 backup is N backup

1 backup is 0 backup

"Two is one and one is none."