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Butterfly, v. To retcon out of existence using butterflies.

Butterflied, adj. Retconned out of existence because of butterflies.

A Point of Divergence causes a lot of knock-on effects, some big and immediate, some subtler and over time. Any of those changes, especially second-order (changes caused by changes) and beyond, are called butterflies.

Compare with Butterfly Nets, which are used to keep these under control.