Yep, I can.
My brother is one of them. Never had a music class in his life. Took a six months of banjo lessons and the teacher said, "You're better than I am". When guys like Bela Fleck say you're good, you're pretty dang good. Yet my brother can't tell you how he plays. He is incapable of giving even his own son lessons. Has no clue how he knows what he knows. Credits slowing down records and learning to play songs. I've seen him asleep playing, and never miss a note. Total subconscious level of playing. Never thinks about it.
Just about any musician who grew up poor (especially if it was decades ago and they were black) never had access to any music education (or education of any kind in some instances). Yet there are prolific players from those decades. Even Louis Armstrong called playing gigs on a riverboat, "going to the university". It's WAS his education. Huddie "Leadbelly" Leadbetter played the twelve string guitar, and could also play the piano, mandolin, harmonica, violin, concertina, and accordion, yet spent much of his life in prison. He certainly never attended a university.
Those people learn in different ways than I learn. They are "born" with something I don't have. I NEED to know the academic principle behind something. For example, I was really struggling learning the scale modes my teacher gave me until I researched scale modes and what they were. Once I understood them, I could play them without any problems or having to refer back to a chart. My speed is not good, but it will come. I'm very logical, so the academic side helps me quite a bit.
There are people who have an exceptional ear, a good memory, and can learn an instrument based on what it sounds like. They don't know the "why" but they know the "how", if that makes any sense.
It's kids like this, who have never had a lesson, yet can play anything, that amaze me:
I'm not saying I agree or disagree with Mr. Gladwell, but his argument is very compelling.