Maxwell’s Demon: Planning for Technology Obsolescence in Acquisition Strategy

Imagine a chamber divided into two parts by a removable partition. On one side is a hot sample of gas and on the other side a cold sample of the same gas. The chamber is a closed system with a certain amount of order, because the statistically faster moving molecules of the hot gas on one side of the partition are segregated from statistically slower moving molecules of the cold gas on the other side. Maxwell’s demon guards a trap door in the partition, which is still assumed not to conduct heat. It spots molecules coming from either side and judges their speeds…The perverse demon manipulates the trap door so as to allow passage only to the very slowest molecules of the hot gas and the very fastest molecules of the cold gas. Thus the cold gas receives extremely slow molecules, cooling it further, and the hot gas receives extremely fast molecules, making it even hotter. In apparent defiance of the second law of thermodynamics, the demon has caused heat to flow from the cold gas to the hot one. What is going on?

Because the law applies only to a closed system, we must include the demon in our calculations. Its increase of entropy must be at least as great as the decrease of entropy in the gas-filled halves of the chamber. What is it like for the demon to increase its entropy? –Murray Gell-Mann, The Quark and the Jaguar: Adventures in the Simple and the Complex, W. H. Freeman and Company, New York, 1994, pp. 222-223

“Entropy is a figure of speech, then,” sighed Nefastis, “a metaphor. It connects the world of thermodynamics to the world of information flow. The Machine uses both. The Demon makes the metaphor not only verbally graceful, but also objectively true.” –Thomas Pynchon, The Crying of Lot 49, J.B. Lippincott, Philadelphia, 1965

Technology Acquisition: The Basics

I’ve recently been involved in discussions regarding software development and acquisition that cut across several disciplines that should be of interest to anyone engaged in project management in general, but IT project management and acquisition in particular.

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