"More people DIDN'T suffer disastrous, permanent side effects than did suffer them" is not exactly a ringing endorsement. Again, 10% incidence of stuff like that is very high. And we're not even talking a handful of easily-identified side effects either... apparently they run the gamut from dry eyes to bone growth problems to depression.
90% is still pretty good odds, its really up to him to judge if the risk is worth the gain.
No, it's not. 90% is extremely poor odds when it comes to medicine, at least if we're talking about chronic or severe side effects.
Let me put it this way: If you take bets like that five times, you'll still probably lose on at least one. You can't judge probability in isolation like that.
As I said, it is up to him to judge whether the risk is worth it, not you. All we can do is give our opinions. I think 90% is acceptable odds, and did when I took the treatment. Why would you worry about 'taking the bet five times'? You're only going to take the treatment once.
I wasn't talking about doing the
same thing five times. I'm talking about choosing things with such odds
in general. No decision exists in isolation. If your general policy is to consider a 10% chance of serious, chronic problems "acceptable risk", then there's a good chance you're going to fuck yourself over.
Also, 90% is a lot less than it sounds like when it comes to things like this.
It's his choice, I know that, which is why neither of us is holding him down and forcing him. However, people have a very poor understanding of probability (and probabilistic decision-making) and what probability of such side effects should even be considered "acceptable" relative to the norm for medication, and it's worth pointing out that the risks involved are very much more than significant.