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That's not comparing like for like. For better or worse driving is considered to have huge social utility.

Fent addiction has huge negative utility for everyone - except its manufacturers and their investors.

MJ is probably more or less neutral.

In terms of broad social effects, refined sugar is probably the deadliest of all drugs, but its direct effects - especially in sodas - are much smaller than its indirect contribution to obesity and diabetes. And unlike a dramatic overdose death, it's very slow-acting. So it's barely considered a problem.




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