I don't know whose brilliant idea it was to turn TypeScript's type system into a Turing-complete language but now many developers are actually using it as such on real projects and it's a massive productivity drain and it makes some code impossible to read... Often, the IDE can't even display the type when you hover over the variable because it's too darn complicated.
Did anyone ever think "Hang on, maybe the problem, the reason why coding is so difficult is that interfaces are often too darn complicated to keep track of? Oh, wait a minute, if the interfaces were really simple, would we even need TypeScript at all? Why don't we just design our software in such a way that the interfaces between components are simple so that we can easily remember which functions accept what kinds of input without losing our train of thought? Wait a minute, this idea already exists? It's called loose coupling and high cohesion. How in Alan Kay's name did I not think of it before???"
Did anyone ever think "Hang on, maybe the problem, the reason why coding is so difficult is that interfaces are often too darn complicated to keep track of? Oh, wait a minute, if the interfaces were really simple, would we even need TypeScript at all? Why don't we just design our software in such a way that the interfaces between components are simple so that we can easily remember which functions accept what kinds of input without losing our train of thought? Wait a minute, this idea already exists? It's called loose coupling and high cohesion. How in Alan Kay's name did I not think of it before???"