>You know Tokyo is the most populated city in the world, right. The solutions in place there will HAVE to be different to anywhere else on the planet. Wrong.

>You know Tokyo is the most populated city in the world, right. The solutions in place there will HAVE to be different to anywhere else on the planet. Wrong. The laws of physics are not different in other places. The complaint was that it takes too long to collect fares. This is factually untrue, and Japan's system (it uses the same system nationwide) proves this. It's a solved problem. In other places, it can be even better because it's less populated (crowded) than here. >It's like a Google engineer talking about how some random SaaS's complaints No, it's really not. It's like someone complaining that encoding WAVs into Oggs is too big a problem, and someone else saying, "no, all you have to do is download libogg and libvorbis and oggtools and use it." The solution is right there, you just need to use it. >But Japanese customs, payment systems, The custom of swiping a card to go through a turnstile is too foreign to you? The card is a stored-value card. You put money on the card, and spend it as you go through the turnstiles. You don't even need a payment system: I charge mine with cash. Edit: just to add to this, there are other transit systems that use this same technology, such as in China.