Word: chasm
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Dates: during 1940-1949
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...Atlantic seaboard. When the first 50 tankers went, oilmen tightened their belts by speedups in tanker service, heavier loading, greater use of pipeline and rail. The loss of 100 more tankers would cut the daily intercoastal tanker haul to less than 600,000 bbl. This is a chasm no stopgap methods can bridge...
Aristotelian logic, Reiser says, has dominated Western thought for 2,000 years, confuses science and society by its omnipresent lingering. This logic is two-valued: a thing is either true or not true. Non-Aristotelian logic (which Bertrand Russell rejects) is many-valued, fills the chasm between true and not true with probabilities. A four-valued logic would permit: true, probably true, possibly true, not true. (The word "and" then acquires 14.348,907 distinct meanings.*) Such logic is not speculative nonsense but a tool urgently needed, for example, by atom-studying physicists. It is also vital in comprehending the relativity...