A few examples (in approximately increasing order of controversy):
If you proceed anyway...
- Identify knowledge that may be dangerous. Forewarned is forearmed.
- Try to cut dangerous knowledge out of your decision network. Don’t let it influence other beliefs or your actions without your conscious awareness. You can’t succeed completely at this, but it might help.
- Deliberately lower dangerous priors, by acknowledging the possibility that your brain is contaminating your reasoning and then overcompensating, because you know that you’re still too overconfident.
- Spend a disproportionate amount of time seeking contradictory evidence. If believing something could have a great cost to your values, make a commensurately great effort to be right.
- Just don’t do it. It’s not worth it. And if I found out, I’d have to figure out where you live, track you down, and kill you.
That is exactly what should happen, but I suspect that in real life it doesn't, largely because of anchoring and adjustment.
Suppose I know the average intelligence of a member of Group A is 115, and the average intelligence of a member of Group B is 85. After meeting and having a long, involved conversation with a specific member of either group, I should probably toss out my knowledge of the average intelligence of their group and evaluate them based on the (much more pertinent) information I have gained from the conversation. But if I behave like most people do, I won't do that. Instead, I'll adjust my estimate from the original estimate supplied by the group average. Thus, my estimate of the intelligence of a particular individual from Group A will still be very different than my estimate of the intelligence of a particular individual from Group B with the same actual intelligence even after I have had a conversation (or two, or three) with both of them. How many conversations does it take for my estimates to converge? Do my estimates ever converge?
If your goal is to accurately judge intelligence this may not be a good approach. Universities moved away from basing admissions decisions primarily on interviews and towards emphasizing test scores and grades because 'long, involved conversation' tends to result in more unconsci... (read more)