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Maybe it's a case of problem complexity. I think of types as a tool to help cope with certain things. If you're building a garden wall you probably don't need CAD. For a 747, you probably do. Though aircraft predate CAD so it's clearly not impossible to do without.

I dislike types in 30 lines of python because they're unnecessary complexity. I like them in 10000 lines of c++ because they do some of the thinking on my behalf.

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> I dislike types in 30 lines of python They are already there you just don't want to acknowledge them. You can build the same prototype in strictly typed language just by sticking to some primitive types like int/string and type inference, and the progress toward something more complex as your prototype grows. I personally prefer to use types right away, so type system can guide me further and show me when I'm assuming something in a wrong way.

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