But if you could only achieve it by adding the shoe isn't that a bit hollow? If you are a 3:02 marathoner in normal shoes then run a 3:00 in a super shoe, you

But if you could only achieve it by adding the shoe isn't that a bit hollow? If you are a 3:02 marathoner in normal shoes then run a 3:00 in a super shoe, you are still a 3:02 marathoner in normal shoes.