> but why methamphetamine? [...] Why risk your health when amphetamines and Adderall are just as good?
The phenomenon is called the "iron law of prohibition" [0]:
The iron law of prohibition is a term
coined by Richard Cowan in 1986 which
posits that as law enforcement becomes
more intense, the potency of prohibited
substances increases. Cowan put it this
way: "the harder the enforcement, the
harder the drugs."
This law is an application of the Alchian–
Allen effect; Libertarian judge James P.
Gray calls the law the "cardinal rule of
prohibition", and notes that is a powerful
tool for the legalization of drugs.
It is based on the premise that when drugs
or alcohol are prohibited, they will be
produced in black markets in more
concentrated and powerful forms, because
these more potent forms offer better
efficiency in the business model—they take
up less space in storage, less weight in
transportation, and they sell for more
money. Economist Mark Thornton writes that
the iron law of prohibition undermines the
argument in favor of prohibition, because
the higher potency forms are less safe for
the consumer.
I learned this term from Johann Hari's book,
Chasing the Scream: The First and Last Days of the War on Drugs [1].
The "epidemic" of opioid overdose deaths would be ended instantly by giving the addicts all the pure heroin they need. ("I think I've mentioned this here before... uhm, 'Switzerland'..., found it").
A response to my comment [2] said "drug overdose deaths fell by about two thirds between 1995 (Heroin prescriptions started in about 1994) and 2012:" [3].
Meth amphetamine is basically an anti-depressant - people don't need even Adderall, they need safe anti-depressants (!SSRI)[4], and help finding stability [5].
[0] https://en.wikipedia.org/wiki/Iron_law_of_prohibition
[1] http://chasingthescream.com/
[2] https://news.ycombinator.com/item?id=14782416
[3] https://news.ycombinator.com/item?id=14783800
[4] https://news.ycombinator.com/item?id=18211048 (my comment about coca leaf's anti-depressant effects. Amphetamines are somewhat similar.)
[5] https://news.ycombinator.com/item?id=17997852
(edit: added [5], moved [4] to after "!SSRI")
(Edit2: moved all the references [] from inline to the bottom of the comment.)