An unhealthy attachment to determinism will turn out to be a career-limiting hangup, I suspect. You already lack insight into how 100% of the code in your project works, unless you only work on trivial projects. Did you think that state of affairs was going to get better with time? As usual, TDD covers a multitude of sins.

As for "autocorrect," let us know when your "autocorrect" takes gold at the International Math Olympiad, with or without steroids.