Kind of like that episode of The Simpsons with the monorail, in other words. You see this in the public transport industry all the time as well, that improving the bus services, putting in street running LRT (light rail) or various other tried-and-true solutions are dismissed as too "unsexy" compared to something that will never happen. Here in New Zealand the present government elected in 2017 and again in 2020 and up for the difficult third re-election in a ew weeks pledged to have a street-running LRT system down some of the old tramway routes in Auckland by now, as something to point to as to why it should be re-elected for a third time. But this eminently practical idea, attended by all kinds of pretty pictures, never happened because somebody persuaded them that the system would work better in lengthy tunnels beneath the same former tramway streets so that the cars could keep gong unimpeded on top, admittedly at a cost of many billions of additional dollars, added delays, and a general consensus that nothing like this could ever conceivably happen in the real world. Such public transport vapourware is not to be confused with a proper metro or some well overdue heavy rail tunnels that are actually being dug beneath downtown Auckland right now. I am talking about a complete absurd boondoggle à la the Simpsons, often put forward as a red herring to actually distract impractical politicians as it would seem..