I want to know more about the future. I do not expect to make much use of the information, and the tiny good feeling I expect to get when I am proven right is far smaller than the good feelings I could get from other uses of my time. My defence for this value as legitimate is that I am quite capable of rational reasoning and hearing out any and all of your arguments, and yet I am also quite certain that neither you nor others will be able to persuade me to abandon it. No further justification or defence beyond that is necessary or possible, in my opinion.