[FabHK]

The question OP was trying to answer was not “what’s the best technology for this application”, but “what’s the best application for this technology”.

And I agree, I’m thinking of short shuttle services in extremely congested cities, such as São Paulo, Jakarta, etc.

Yes, they’d be better served by a good subway system, but good luck waiting for that.

[echevil]

I’m just saying, we need to find other applications for this new technology. If we just want to connect city center to airports I’d so much prefer that people invest their money on trains which is a solution that can benefit lots of people rather than a just a few riches

[lovemenot]

Trains are great, but they exist already.

For a technology to eventually become mainstream, usually it first needs to find a sweet-spot where operational kinks can be worked out. Think of Tesla Roadster.

It may add value if you could suggest a more suitable initial application than airport shuttle.

[romwell]

If the best application for a technology is better served by another technology, then what's the point to begin with?

[FabHK]

1. The new technology is in its infancy, and we expect it to get better over time.

2. External constraints prevent the better solution from being implemented for now.