But what if I'm coding for the correct future? Maybe there's a way where I can code for every possible future with minimal effort. I'm talking about a pattern

But what if I'm coding for the correct future? Maybe there's a way where I can code for every possible future with minimal effort. I'm talking about a pattern that isn't a form of premature optimization. Just a rule. Your way of coding is, coding for the most probable future. Distinctly different of coding for every possible future.