Rationality

You had best ask yourself which future experiences your belief prohibits from happening to you.

When you’re buying a house, you don’t get exactly ten houses to choose from, and you aren’t led on a guided tour of all of them before you’re allowed to decide anything. You look at one house, and another, and compare them to each other; you adjust your aspirations—reconsider how much you really need to be close to your workplace and how much you’r

To avoid professing doubts, remember: A rational doubt exists to destroy its target belief, and if it does not destroy its target it dies unfulfilled. A rational doubt arises from some specific reason the belief might be wrong. An unresolved doubt is a null-op. An uninvestigated doubt might as well not exist. You should not be proud of mere doubtin

“Oh what a tangled web we weave, when first we practise to deceive,” said Sir Walter Scott.

What does this suggest for your holiday shopping? That if you spend $400 on a 16GB iPod Touch, your recipient sees the most expensive MP3 player. If you spend $400 on a Nintendo Wii, your recipient sees the least expensive game machine. Which is better value for the money? Ah, but that question only makes sense if you see the two side-by-side. You’

Well, one trick cured smallpox and built airplanes and cultivated wheat and tamed fire. Our current science may not agree yet on how exactly the trick works, but it works anyway. If you are temporarily ignorant about a phenomenon, that is a fact about your current state of mind, not a fact about the phenomenon. A blank map does not correspond to a

I suggest that an analogous bias in psychologically realistic search is motivated stopping and motivated continuation: when we have a hidden motive for choosing the “best” current option, we have a hidden motive to stop, and choose, and reject consideration of any more options. When we have a hidden motive to reject the current best option, we have

You should suspect motivated continuation when some evidence is leaning in a way you don’t like, but you decide that more evidence is needed—expensive evidence that you know you can’t gather anytime soon, as opposed to something you’re going to look up on Google in thirty minutes—before you’ll have to do anything uncomfortable.

The hope is that it takes less courage to visualize an uncomfortable state of affairs as a thought experiment, than to consider how likely it is to be true. But then after you do the former, it becomes easier to do the latter.