When we were in school, at one point our teacher switched our limit calculation questions from the almost standard notation (x,y,z for variables; a,b,c for constants) to the opposite.
Some people would have trouble handling something that had \lim_{a \to x} (some complicated f(a,x,y)) where y is a constant even though they could handle it with standard notation.
For another possible example, take something you've written recently, replace all the variable names with things like Integer, Double, and the function names with For, While (within the syntax of the language) and then try reading it.
Besides this, there's the jesus-in-toast, man-in-the-moon, face-on-mars business. The brain overfits everything, but it never stops training. It's in constant reinforcement learning.
Some people would have trouble handling something that had \lim_{a \to x} (some complicated f(a,x,y)) where y is a constant even though they could handle it with standard notation.
For another possible example, take something you've written recently, replace all the variable names with things like Integer, Double, and the function names with For, While (within the syntax of the language) and then try reading it.
Besides this, there's the jesus-in-toast, man-in-the-moon, face-on-mars business. The brain overfits everything, but it never stops training. It's in constant reinforcement learning.