The “availability heuristic” is the related concept that the more easily people can think of example, the more often they think it happens. For example, people think murders occur all the time because of news coverage and television shows, but far more people die because of suicide.

I’m looking for positive examples where you notice something like “lots of people using iPods” so they think it’s very popular, so more people buy it, and it becomes more popular.

Thanks!