The Problem With Reversion to the Mean

Kahneman says companies or stocks that have been doing well are consistently more likely to continue their improvement, at least in the short run. That's actually at odds with the idea of reversion to the mean, right? I'm less likely to give that explanation than Kahneman, but I do think it's important to recognize that no company, no individual, is going to manage to maintain a high level of performance relative to everyone else or the field forever.