Life,information theory,probability, and physics |
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Authors: | N Rashevsky |
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Institution: | (1) Committee on Mathematical Biology, The University of Chicago, Chicago, USA |
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Abstract: | A purely information-theoretical approach to the problem of self-replication of elementary living units implies that pure
chance is the determining factor in the formation of the first living unit. The probability of such a spontaneous formation
can be calculated from the minimum amount of information which an organism must possess in order to replicate itself. An estimation
of this amount of information is made here by two different methods. First by a “paper and pencil experiment” which indicates
the minimum amount of information needed on a printed page in order that with given tools the page could be reproduced. Second—by
an analytical consideration of some hypothetical molecular mechanisms. A general method for handling such problems is suggested.
On the basis of estimated information contents it is shown that under most favorable conditions the probability of a spontaneous
generation by pure chance during the lifetime of the earth is vanishingly small. It is concluded that dynamic factors, which
may reduce tremendously the information content, must play a role in the genesis of life on earth. |
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