I mean, "diminishing effects" - these folks are the absolute apex of swimming struggling for the absolute maximum speed in the water that any person has ever ac

I mean, "diminishing effects" - these folks are the absolute apex of swimming struggling for the absolute maximum speed in the water that any person has ever achieved (under the watchful eye of someone with a stopwatch, at least). Small effects don't matter unless you're going for a world record, and then they might.