> Locality is the design principle of grouping related things together. It’s a mental shortcut or heuristic that allows the mind to assume a higher degree of independence from the code block being read, easing the mental burden. Spreading code across your codebase diminishes locality.

> Linearity is the idea of having instructions be read one after the other, from top to bottom, just like how code is executed. Having to jump back and forth from function call to function call reduces linearity.

1000 times yes.