11.   Proponents of the idea that people are being kidnapped and experimented upon by alien beings would sound less earnestly gullible than they often do.

12.   Put up a website and invite alien beings to drop you an e-mail.

13.   Though true believers would disagree, it is probably safe to say that the deluge of UFO images tells us less about alien beings than about ourselves.

14.   Projects involving the search for extraterrestrial intelligence, or SETI, are based on the assumption that alien beings are trying to communicate on specific radio frequencies.