J-Curve
An improvement can make outcomes worse at first, then better as the change takes effect. Expecting the initial dip helps prevent abandoning a useful change too early.
Episodes that teach this
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Why Things Get Worse Before Getting Better: The J-Curve | Future IQ
· explained at 0:24
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it will not even be flat. It will go
Examples & generalisations
Concrete examples: feeling sick for a few days after a vaccine