Ad hominems are childish (is that redundant)
Pointing out that a two data point projection (with one number made up) is childish constitutes an ad hominem?
Well do you have anything nice to say about someone who tries to draw conclusions from two data points with one of them "estimated"? You're supposed to be HiTech, presumably you know something about math and plotting data points?
Do you really think a function describing drug usage is going to be linear with a downward slope? If you do, then the problem is solved, because based on that two point projection it would have reached zero after 108 years, which would have been ~2008. Did we eliminate drugs and nobody told me?
Any rational person will recognize that it won't be linear, and it won't have a negative slope. I am not arguing that he is wrong because he is a bad person, I am arguing that he is wrong because his methodology is fundamentally flawed as if a child would have proposed it.
Seriously, I can't think of anyone but a child who would assert such a thing. It is simpleminded.