Principle of optimality

The principle of optimality is a mathematical way of making sure you make a decision that is the best for you. It's like making sure that your choice is like the best one if you could have seen all the choices that you had. So if you wanted to buy a present for your friend, you would want to make sure that your present was the best one compared to all your other options. The principle of optimality helps do this by looking at all the different possible options and picking the option that is the best.