"What we're trying to do in these metropolitan areas is refocus the services that already exist there, because they are applied in a totally random manner, " she said.

WSJ: Reaching Outside The Ivory Tower

She also described an idea for a remote-controlled torpedo: A radio transmitting directions and a receiver implementing them would be synchronized so that their frequencies could be changed simultaneously in a random manner.

WSJ: Book Review: Hedy's Folly

In some random, overly complicated manner.

FORBES: Cheap or Comfortable?

How much validity you should assign to PFTH depends on whether you think stock prices move in a chaotic manner or follow a random walk.

FORBES: Are Stock Prices Random Or Chaotic?