I really struggle to understand people who struggle to understand a lace chart. Or line-by-line cable instruction. Or an intarsia graph.
My son, talking to his Grandmother about his finals, mentions his bafflement at people who struggle to remember mathematical formulae. Just start doing the equation, he says, and you'll *see* which formula you need and how it fits. ...and my mother reminds him that he is gifted in this area and that most people are not able to intuitively grasp triginometry.
Yarn tells me when there is a problem. The stitches just feel uncomfortable when I've lost the rhythm of a pattern. I can, 99% of the time, see where the lace is going before I've finished the first row. Charts are just a way to check when my count is off, and how many rows I've finished.
I cast off the back of a cabled sweater today. I should write down how I did the neck and shoulder decreases before I forget. It was kind of hard to wrap my fingers around what I wanted to do with those, so I charted it out...
Two dimensional symbols meaning texture. Just start the equation, and the formula will come.