Noting it down so that the context is easy enough to restore may be a surprisingly large amount of work, easily taking 10 or even 15 minutes, not 20 seconds.
This is somehow related to the fact that e.g. a programmer can spend 30-60 minutes wandering through code and docs before the right amount of context is built in their head, so that a seemingly simple change can be done with confidence.
This is somehow related to the fact that e.g. a programmer can spend 30-60 minutes wandering through code and docs before the right amount of context is built in their head, so that a seemingly simple change can be done with confidence.