I think that visiting a drug rehab center would be much less convincing (though much faster) than the above suggested method. This is because a drug rehab center will look bad whether or not the effects are very rare, since it’s selected for people who got bad enough effects to be in a rehab center.
(If his argument is that the bad effects don’t exist, a rehab center would be good evidence against that, but it sounds like he believes more that they’re rare and mild enough to be worth it.)
In general, if you want to convince someone who is taking ideas from this community seriously of something, you want to show them evidence that would only exist if the thing you want to convince them of is true, and possibly even explicitly lay out why you expect that.
I think that visiting a drug rehab center would be much less convincing (though much faster) than the above suggested method. This is because a drug rehab center will look bad whether or not the effects are very rare, since it’s selected for people who got bad enough effects to be in a rehab center.
(If his argument is that the bad effects don’t exist, a rehab center would be good evidence against that, but it sounds like he believes more that they’re rare and mild enough to be worth it.)
In general, if you want to convince someone who is taking ideas from this community seriously of something, you want to show them evidence that would only exist if the thing you want to convince them of is true, and possibly even explicitly lay out why you expect that.