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.
I am grouping together "everything that goes into your brain," which includes lots and lots of stuff, most of it unconscious. See research on priming), for example.
This argument is explicitly about encouraging people to justify ignoring relevant data about reality. It is, I recognize, an extremely dangerous proposition, of exactly the sort I am warning against!
At risk of making a fully general counterargument, I think it's telling that a number of commenters, yourself included, have all but said that this post is too dangerous.
These are not just people dismissing this as a bad idea (which would have encouraged me to do the same), these are people are worrying about a dangerous idea. I'm more convinced I'm right than I was when I wrote the post.
Your post is not dangerous knowledge. It's dangerous advice about dangerous knowledge.