Usually I find that there's plenty of non-programming, semicognitive work to do that hits another part of the brain. E.g. testing strategies, good ways to prop

Usually I find that there's plenty of non-programming, semicognitive work to do that hits another part of the brain. E.g. testing strategies, good ways to properly document a system, etc. Coding's just one part of the brain. Other parts are still ready to go.