Book excerpt: How our fast-forward minds make something out of nothing We all know expectations matter—in school, in sports, in the stock market. From a healing placebo to a run on the bank, hints of their self-fulfilling potential have been observed for years. But we’ve never fully understood why. Journalist Chris Berdik offers a captivating look at the frontiers of expectations research, revealing how our assumptions bend reality. We learn how placebo calories can fill us up, how fake surgery can sometimes work better than real surgery, and how imaginary power can be corrupting. Mind Over Mind is a journey into the most exciting area of brain research today.