When my life was spreadsheets, we were expected to get to the point of being 99.99% right.
You went from “do it again” to “go check the newbies work”.
To get to that stage your degree of proficiency would be “can make out which font is wrong at a glance.”
You wouldn’t be looking at the sheet, you would be running the model in your head.
That stopped being a stochastic function, with the error rate dropping significantly - to the point that making a mistake had consequences tacked on to it.
You went from “do it again” to “go check the newbies work”.
To get to that stage your degree of proficiency would be “can make out which font is wrong at a glance.”
You wouldn’t be looking at the sheet, you would be running the model in your head.
That stopped being a stochastic function, with the error rate dropping significantly - to the point that making a mistake had consequences tacked on to it.