Thursday, June 25, 2009

That Shot Was Out?

Fascinating tid-bit from The New York Times for Wimbledon watchers: When line calls are disputed, "in" calls usually prove correct. "Out" calls are usually wrong.
Theoretically, line judges should be equally likely to call an out ball in as they are an “in” ball out. But when objects travel faster than humans’ eyes and brains can precisely track them — for example, Andy Roddick’s 150-mile-per-hour serves — they are left having to fill in the gaps in their perception. In doing so, they tend to overshoot the object’s actual location and think it traveled slightly farther than it truly did.
This error in perception must have some relevance to investors and investment management. What is it?

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