One of the reasons why I'm interested in the autonomous vehicle space is that I know our built environment is sticky. And because we've designed so much of it around the car, it's hard to imagine this dependance going away anytime soon.

In fact, there's a very real possibility that autonomy leads to further decentralization. That is typically what happens when we make it easier and cheaper for people to travel longer distances. They sprawl. So we ought to start preparing ourselves for the positive and negative externalities.

I'm not a deep expert on autonomous vehicles, but as an interested observer, Waymo appears ahead of Tesla in delivering this future. Waymo has been offering fully driverless rides since 2020 and Tesla is still at L2 autonomy, which means a driver needs to be present in the vehicle.

I hear from lots of people that their Full Self Driving (FSD) software is pretty good, but according to some studies, it can require human intervention as often as every 13 miles. This doesn't necessarily mean that Tesla won't be first to "solve autonomy," but their Cybercab isn't here yet.

If you're interested in this topic, here is an article by Timothy Lee summarizing a discussion that he recently had with the co-CEO of Waymo, Dmitri Dolgov. Some of it is a little technical, but it does offer a comparison between Tesla and Waymo.

That is, how their approaches differ and what the future might look like.

Mexico City is all kinds of big. It is the largest metropolitan area in North America, the largest Spanish-speaking city, and broadly one of the largest megacities in the world. Because of this, it can be, you know, hard to move around.

I remember visiting the city for the first time when I was in elementary school, and it standing out to me that everyone had one day of the week when they were simply not allowed to drive their car. It was/is a form of load balancing. Imagine that. (I don't know if this is still the case, or if it's even more stringent today.)

I also remember visiting the city later on, when I was in grad school, and it standing out to me that their metro had women-only cars. This was and continues to be an attempt to try and minimize the amount of sexual harassment that takes place on transit. Again, it can be hard to move around Mexico City.

The city's latest solution is one that has found success in other Latin American cities, such as Medellin, and that is: cable cars. Relative to subway or light rail, they're inexpensive. They're also good at navigating steep terrain, and their stations can be inserted into dense urban areas. This includes working-class neighborhoods who might otherwise have very limited mobility options.