Close enough

Sometimes you just don’t know.
Most of those times, you take a punt (by which I mean an educated assessment based on the things you actually do know and the balance of experience you bring to the table – bearing in mind that experience is largely won from the times you’ve got things wrong) and get on with it.
And most of those times, the punt pays off. You’re close enough to right for the difference not to matter.
And most of the other times, if you’re wrong you can course correct and the only thing lost is a bit of time and some naivety (which you’ll remember next time as experience factors into the calculus).
In other words – decisions make the world move forward.
And if you really can’t decide: a few more data points, triangulate a little tighter, get on with it.
Skippy strategy: When you don’t know, decide.