“That’s all you need to know” is not the best way to put it… “It’s one of the best hacks out there” would be better. It’s kind of “take the stairs instead of the elevator” on steroids… you’re modifying something you have to do anyway, creating a new habit that will work in your favour… and in this case it also has environmental benefits and is likely cheaper then other forms of transport. But like any hack, there are scenarios where it won’t work, that’s clear.