belief

The Nine Causes of Disagreement

December 21, 2011
There are an incredible range of subjects that people disagree about, but only a small number of core reasons that people disagree. When we encounter complex and difficult to resolve disputes, it can be helpful to break them down in terms of these reasons. This process can help give us insight into what is preventing a consensus from being reached. Disagreements can be caused by: 1. Facts. People have access to different information. One person has studied physics, another hasn't. One has spen...
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How Great We Are

November 8, 2011
Most of us know we are great. We easily see our own potential, goodness, and areas of skill. We're sure we have strong justifications for our behaviors and beliefs. When things go wrong for us, it usually isn't fundamentally our fault. When things go well, we know we deserve the credit. Just ask people. In a poll of high school seniors, only 2% thought they were below average in leadership ability, and 25% believed they were in the top 1% of ability to get along with others (note: this survey...
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Your Beliefs as a Temple

September 27, 2011
Your beliefs form something like a temple. The temple has many columns, rooms, and towers. The columns are facts and reasons that support the rooms. The rooms of the temple represent your major beliefs. The towers correspond to beliefs that build on each other. For example, you have rooms corresponding to aspects of your moral philosophy. On top of these rooms, supported by your moral philosophy, are rooms corresponding to your political philosophy. On top of these are still other rooms, corr...
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Surprised? Update your model.

September 24, 2011
In order to make predictions, your brain must have a model of reality. This model is necessarily much simpler than reality itself. To see why, imagine that you are about to drop a baseball from waist height. Your brain can't possibly know enough about the atoms composing that baseball and the air around it to simulate what will happen at the atomic level. And even if your brain did have accurate knowledge about the atoms, using information at such a fine a level of detail would be extremely comp...
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Finding Our False Beliefs

September 7, 2011
By definition, we believe that each of our beliefs is true. And yet, simultaneously, we must admit that some of our beliefs must be wrong. We can't possibly have gotten absolutely everything right. This becomes especially obvious when we consider the huge number of beliefs we have, the complexity of the world we live in, and the number of people who disagree with us. The trouble though is that we don't know which of our many beliefs are wrong. If we knew that, we should have stopped believing th...
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Keeping Ideas at a Distance Using Probability

August 11, 2011
We often talk about ideas by using phrases like "I believe X." But what do we mean when we say that we "believe" in an idea? Do we mean that we have 100% confidence that the idea is true? Let's hope not. Even statements that we all would say we very strongly believe, like "tomorrow the sun will rise", and "I am not a robot" we should not assign 100% probability to. While we can be very, very, very certain that the sun will rise tomorrow and that our brains are not computers, we cannot be abso...
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Reimagining What You Think You Want

August 7, 2011
I tend to enjoy myself quite a lot when I swim. And yet, I would very rarely choose to swim when the opportunity was available. One might conclude from this that though I liked to swim, I didn't want to swim, so my "wanting" and "liking" were out of sync. But on further reflection, something more subtle was occurring. When I would try to decide whether I wanted to go for a swim, I would do so by performing a quick mental simulation of the experience. The problem was, that in the case of swimming...
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The Interplay Between Your Reason and Emotions

July 31, 2011
It can sometimes be useful to think of yourself as consisting of multiple systems. You have an emotional system that constantly processes your sensory input and thoughts, and produces emotions like fear, anger, happiness and contempt based on this input. You also have a reasoning system, which is what you use when you are reasoning, planning, analyzing and consciously predicting. But the operations of these two systems are not independent. In fact, they each have the power to alter the operation...
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What’s So Special About Your Own Beliefs?

July 30, 2011
Suppose that Tom and Sally have a disagreement over a factual question (as opposed to one of values or preferences). She claims that the argument he is making has errors or is unconvincing, but Tom feels the same way about her argument. They debate the question for an hour, but afterwords are still each adamantly convinced that his or her own reasoning is sound while the other person's is flawed. In this instance, is each person really more justified believing in his or her own belief than he or...
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