LogFAQs > #910647210

Indeed, a "'thing' you can't do" (as per the topic's other posts at least) seems to refer to things you cannot simply do just from learning or getting demonstrations.

Something like whistling or wiggling your ears for instance. No matter what advice you give a person, they may not be able to do it. Whistling itself is arguably borderline since you could potentially figure it out on your own with enough struggling, but simply hearing how to do it or seeing someone else do it will not let you reproduce it.
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