Yeah I'm the same. I can visualize my house. When debugging and there are large number of numbers in systems to keep track of then arranging the systems on a piece of paper just to quickly find the numbers associated with each system helps, but beyond that when thinking about code it is all maths with no spacial or visual component, just logical statements and reasoning. E.g. When I think of a shuffle-shard I don't visualize the sets, I just think, subsets of size k.