Zipf's law states that if words of language are ranked in the order of decreasing frequency in texts, the frequency of a word is inversely proportional to its rank. It is very reliably observed in the data, but to date it escaped satisfactory theoretical explanation. This article suggests that Zipf's law may result from a hierarchical organization…

The author outlines the construction of a somewhat different machine than that envisioned by Turing (with which it would be possible to converse, presumably by telephone or telegraph, and which would be capable of masquerading as a human being). The machine envisaged by the author would be capable of doing comprehension exercises. Such a machine…