Van Horn's picks were helped by his value bias, as value has been in favor of late.

FORBES: Pick of the Crop

All these have a survivorship bias: investments mentioned at dinner parties, stocks charted in Value Line, entrepreneurs featured in FORBES, stock market histories (does your data set include the --100% compound annual return on Russia over the past century?), available hedge fund performance numbers and every mutual fund ad.

FORBES: Magazine Article

And because investors value liquidity, the bias of market forces is towards the consolidation of trading in one place, or at least to a place linked to many others.

ECONOMIST: Stockmarket regulation

The IPCC, in other words, learned the hard way the value of letting mavericks and gadflies challenge confirmation bias.

WSJ: The Benefits of Scientific Rivalry | Mind & Matter