That observation seems to make sense. Yet at this clinic, they tell me, they have discovered something that contradicts it. If you are an addict here and you want a higher dose of heroin, you can ask for it, and they’ll give it to you. So at first, most addicts demand more and more, just as Anslinger and his agents predicted. But within a few months, most addicts stop asking for more and choose, of their own free will, to stabilize their doses.