That seems like a good way of limiting yourself from discovering potentially new and surprising things. I get the need to protect your time, but not at the total expense of randomness.
My takeaway wasn't literally the "time" consideration but the "one decisive reason" part. I believe that could extend into other types of decision-making like building products where there should be an overwhelmingly strong reason to do something vs 10 small reasons where you're just trying to convince yourself of something.