By the late 1990s the CBOE trading floor was so computerized it self-heated

Evidence

Such was the array of screens, computers, and communication systems on the Chicago Board Options Exchange’s trading floor at the end of the 1990s that other heating was needed only when the Chicago temperature dropped below -10°F (Options Institute 1999, p. 232). — Donald MacKenzie, An Engine, Not a Camera, 898

Categorization

• CANDY: A fun, tweetable fact: the electronic trading floor generated enough heat to warm itself except in extreme cold.
• XREF: connects to: Rational-egoist theory cannot explain why anyone founded the CBOE — Donald MacKenzie & Yuval Millo, Constructing a Market, Performing Theory, 74; The CBOE automated away the missing stock price by calculating a synthetic underlying. — Donald MacKenzie & Yuval Millo, Constructing a Market, Performing Theory, 130