[reactordev]

That’s true of diets, not exercise. Physical exercise is always measurable and always works. Whether you can do the exercise is another matter. It should be tailored to your body. It should be hard. It should hurt (in soreness, not in pain). I’ve seen people transform.

[mynameisvlad]

You have just listed multiple factors which can be involved in the success of an experience.

How can you claim it’s universal when from your own words it clearly is not?