Dean's Scholars Transfer Essay (UT) - a rational process and belief

I have to write an essay to transfer to DS due in a few days, and I'm having a hard time coming up with a topic. Any suggestions/ideas/your own personal ideas would be helpful for me to come up with something of my own.

The topic is:

Explain a belief you accepted at some time in your life but have rejected on the basis of a rational process. Perhaps the change was initiated by something you heard or some experience you have had. For this essay you must go beyond reporting what you heard or describing what happened to you. You must display the process of reasoning that carried you to your new belief. In your essay, be careful to explain the belief itself, reasons you had for holding it, and, most importantly, the rational process that led you to reject it.

For me personally, I'd write about some of the prejudices that I've overcome over the years.

i.e used to semi- homophobic etc.

Thanks

Does anyone else have any other ideas?

Make it something about your intended career. At one time, I believed that I could not learn about online publishing because I am a low-tech person. Now I realize that I am able to do it, because all I need to do is focus on a few things that I do best.

What about you? What is something you used to think you could not do but discovered that you can do through a rational process?

:-)