Esperanto, Klingon, Blissymbolics and 900 others: why we invent languages

This week, a converation with Arika Okrent, author of In the Land of Invented Languages: Esperanto Rock Stars, Klingon Poets, Loglan Lovers and the Mad Dreamers Who Tried to Build a Perfect Language.
Okrent has a linguistics background: she has a Ph.D. from the University of Chicago. But her interest far exceeds the merely  scientific. She  [...]