“Perfection is the only thing that can be surpassed, yet never achieved.”
I think about this quote often. I think about “perfect games” pitchers throw. They’re all different. They’re not equal. They just mean 27-up, 27-down.
Perfect days can be anything, really. There’s no criteria. They just exist in a sub-segment of great days where the inputs (what you did) and the outputs (what happened) were both all positive. There’s bazillions of permutations of this, just like no two pitches are exactly alike, nor are any two swings.
That’s how I think about “perfect” days anyway. It’s a 100 on a test, in which the whole test is one open-ended essay question.