OCity,
FWIW, it appears that the author of that tweet doesn't have the best reputation for sticking to the facts when it comes to science:
He authored the controversial 2019 book Tell Your Children: The Truth About Marijuana, Mental Illness and Violence that has been denounced as alarmist and inaccurate by many in the scientific and medical communities because of his claims that cannabis causes psychosis and violence; many scientists state that he is drawing inappropriate conclusions from the research, primarily by inferring causation from correlation,[14]:1[15]:1[16]:1[17]:1[18] as well as cherry picking[13]:1 data that fits his narrative, and falling victim to selection bias via his use of anecdotes[13]:1 to back up his assertions.[16]:1[17]:1[15]:1[19]:1[20] Other reviews have been less critical, accepting the anecdotes as real-life examples of the science presented.[21][22][23]
From Wiki.
Drawing inappropriate conclusions and cherry picking is exactly what he did there (and seems to be doing with all of his tweets on this topic).
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"When the Know-Nothings get control, it will read 'all men are created equal, except negroes, and foreigners, and Catholics.' When it comes to this I should prefer emigrating to some country where they make no pretense of loving liberty – to Russia, for instance, where despotism can be taken pure, and without the base alloy of hypocrisy.”--Abraham Lincoln
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