Knots and lashings were one of those things that "just made sense" to me as a child/teenager. So much so that even though I never took pioneering merit badge as a Boy Scout, people who were taking it had me double check their project knots before they were submitted for final evaluation.

Had a similar experience with SQL e.g. I finished a 3 hour exam in <45 minutes for a DB class in grad school.

I've always wondered if the "3d modeling" aspect of both skills overlapped and why this was easy for me (I once tested very highly in mental 3d rotation skills on an aptitude test so maybe?)