[magnetic train] clarification

ScotsToryB sets the record straight about the Lathen tragedy: Maglev is magnetic levitation i.e. the train is raised by magnetic force thus moving with least friction possible. If the power(to create the magnetic field) failed, the train should roll to a stop. I am not an engineer but suspect a failure in the infrastructure. ScotsToryB also asks if I’m being ironic. No, just pig ignorant but I still maintain that when the train is not, let’s say, actually attached, then the scope for something like this exists. Am I a Luddite not to like this technology?