The hidden cost of early optimization can be hidden complexity and bugs. Take something slow and simple, replace with a cute trick that complicates and has corn

The hidden cost of early optimization can be hidden complexity and bugs. Take something slow and simple, replace with a cute trick that complicates and has corner cases and boom maintenance nightmare. In many cases while the optimization is obvious, it is unnecessary since no cold hard data on the cost of execution in production of the slow code actually exists