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2 results

Bimodality of evolutionary rates
Lev R. Ginzburg
Journal: Paleobiology / Volume 7 / Issue 4 / Fall 1981
Published online by Cambridge University Press: 08 February 2016, pp. 426-429
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A simple theoretical argument shows that the evolutionary process will look gradual if it is considered on too fine or too coarse a time scale. There exists an intermediate time scale in which the distribution of evolutionary rates will appear as bimodal.

Judgment under uncertainty: Evolution may not favor a probabilistic calculus
Lev R. Ginzburg, Charles Janson, Scott Ferson
Journal: Behavioral and Brain Sciences / Volume 19 / Issue 1 / March 1996
Published online by Cambridge University Press: 04 February 2010, pp. 24-25
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The environment in which humans evolved is strongly and positively autocorrelated in space and time. Probabilistic judgments based on the assumption of independence may not yield evolutionarily adaptive behavior. A number of “faults” of human reasoning are not faulty under fuzzy arithmetic, a nonprobabilistic calculus of reasoning under uncertainty that may be closer to that underlying human decision making.