One of the fundamental flaws of the Star Trek series, and of a lot of science fiction for that matter, is that it's taken as read that the Enlightenment belief in the progress of humankind is essentially true and inevitable. So in the future (a mere 300 years) we not only get machines that solve the problems associated with travel – delays, having to talk to other passengers, being searched by customs – we actually get the human beings to match. In the future, being disassembled at the molecular level by a machine styled on a discothèque and operated by a poorly paid technician rarely troubles people. Transporter technicians never go on strike, and intergalactic agreements have been reached that transporter devices are out of bounds for industrial sabotage or terrorist protests. Similarly the users seem to fondly tolerate a catalogue of 'incidents' including the production of doppelgangers, the switching of travellers with themselves from and to parallel universes, possible childhood regression, and the production of Brundle Flies (even worse in fact: Nelix flies).