Yes, a massive success like SolarCity, Hyperloop, Boring company, the car-subway they built in Vegas, the spacex-edition-tesla with a 10K PSI tank onboard for cold gas thrusters, and of course how could we forget the flawless, glorious success of self driving cars that don't need a human in them.
The guy has the same ratio of good:bad ideas as everybody else, he just has more money to burn on them.