[Dr. Frederick B. Cohen said:] > When you say "impossible" in a scientific context, [...] Given that the list is for detailed practical discussion of real bugs and security problems, I would assume that we're talking about "impossible" in a practical context, rather that in a scientific one. This, most of the time, is what you call "infeasible" in a scientific context. I guess scanning a network with an electronic microscope is not absoultely impossible, but certainly is practically impossible (and yes, I'm taking it with humor :-) ). Best regards. -- Diego Martin Zamboni Depto. de Administracion de Supercomputo diego@ds5000.dgsca.unam.mx DGSCA, UNAM, Mexico. Tel. (5)622-85-29 WWW home page: http://www.super.unam.mx/~diego/