When making a decision, we often erroneously implicitly compare it to a theoretical perfect alternative.

Asking ourselves, "is this thing I'm considering doing the best possible thing?"

But that's an impossibly high threshold to clear, and if you try, you'll likely get frozen in place, unable to act.

The real threshold to clear is not "is this perfect" but "is it better or worse than the actual alternative if I didn't"?

The actual alternative is almost certainly "the status quo."

This bar is significantly easier to clear.

If you follow this, you might have some arcing / circuitous paths and wasted effort, but you will be able to be moving, adapting and learning.

Similarly, science as an enterprise isn't about finding absolutely true, black and white facts.

It's instead a social enterprise to continuously find more-plausible theories to explain the actual evidence.

An ever-more plausible collective explanation of the world.