Such advice is dangerous in the assumption that there is only one type of problem in programming. One type of domain - applications related to the computer and

Such advice is dangerous in the assumption that there is only one type of problem in programming. One type of domain - applications related to the computer and data sciences and computing infrastructure. While GIT might be particularly about data structures at it’s core, might I suggest you don't try to model into code your next complex payroll, insurance quotation, supply-chain or billing system as a composable set of lists, stacks, queues and trees, modified by code that grows over time to increasingly looking like a big ball of mud.