Long, long, (long) ago I used to teach people to juggle at the local Renaissance Fair. I would say I could get almost everyone to flash 3 in less than 30 minutes. Most people walked away having at least 5-6 successful throws. The only people who really couldn't learn are those who don't like to fail and won't even try. Learning to juggle is repeated failure and you have to be willing to persist. Learning 5 clubs (very briefly) took me many years of repeated failure.
reply> "Anyone can juggle"
replyTechnically this is not incompatible with the title. Just uses “can” in a different sense. The title would be using “can” in the “has the skill already”, while you use “can” in the “able to acquire the skill” sense.
It is not hard to imagine that most people when asked the question “can you juggle?” would answer in the negative. That’s what the article’s title describes. And then if those people, given sufficient motivation can learn to juggle that leads to your sentence. And they both can be true at the same time.
I agree that it would be nice to provide source for the claim though.