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.
In America, we have grown jaded towards protests because they don't ever accomplish anything. But at their most powerful, protests become revolutions. If Deng would have just ignored the protesters indefinitely, the CCP would have fallen. Perhaps the protest could have been dispersed without loss of life, but it's only very recently that police tactics have advanced to the point of being able to disburse large groups of defensively-militarized protesters without killing people. See http://en.wikipedia.org/wiki/Miami_model and compare to the failure of the police at the Seattle WTO protests of 1999.
This is a recent story about Deng's supposed backing of Tiananmen violence. http://www.nytimes.com/2010/06/05/world/asia/05china.html?_r=1