It's not pedantic, it's a real point. It's not clear at all that the relationship between exercise and fitness is as simple as you claim. Clearly, if a given p

It's not pedantic, it's a real point. It's not clear at all that the relationship between exercise and fitness is as simple as you claim. Clearly, if a given person exercises more, they will be more fit. But there are also many other factors, including genetics, influencing fitness.