In most cases as you employ a strategy to do something the strategy after a while will bring less value.
Examples: When you make a medium-sized purchase, like a new monitor, the average value of each minute spent researching is highest at the start and decreases over time. It probably doesn’t make sense to buy it after just 1 minute of research, since minutes 2-30 might provide valuable information. But after a certain point, it may no longer be worth spending more time on research, as the value of each additional minute diminishes.
More examples: If you are on a tenth page of Google results you probably are better off changing the search term, If you eat 5th slice of pizza.
This relates to 80/20 rule (the first 20% of your research time will usually produce 80% of the value) and Opportunity cost (you don’t have a single goal in life, like buying the perfect monitor. By spending too much time researching, you’re missing out on other things you could be doing)
some examples based from: https://www.lesswrong.com/s/KAv8z6oJCTxjR8vdR/p/cvDtmPNCyrkpg4d4F