Agree. And I will even take it one step further: 95% of the code you write will be code that transforms one data structure to another. Think about it: even UI c

Agree. And I will even take it one step further: 95% of the code you write will be code that transforms one data structure to another. Think about it: even UI code is exactly that. It transformed data in one representation (internal data) to another representation (the UI state). And back again when the user presses “OK’ or whatever.