EIL is non-artificial.
Though Zamenhof's Esperanto is so well known as an international means of communication that, as Crystal (1992) reports, several countries transmit radio broadcasts in it, it has no native speakers Thus EIL differs from Esperanto in a sense that the latter is artificial. In fact English is an exceptional natural language able to obtain international appreciation. "For the first time a natural language has attained the status of an international (universal) language", (Kachru 1982). Even if we can accept Prodromou's (1988) parallelism between English in international setting and Algebra, again the latter is not a real means of human communication.