Define obsolete. You could make the case that ICBMs make conventional armies obsolete, and I would guess many people in the 50s/60s did. In a similar vein, vi

Define obsolete. You could make the case that ICBMs make conventional armies obsolete, and I would guess many people in the 50s/60s did. In a similar vein, videoconferencing, email, telephones should make international business travel obsolete. That shows no sign of happening either. I guess because humans react differently to things that are right in front of them, rather than remote and hypothetical.