Roncesvalles Avenue is a successful north-south main street in the west end of Toronto. I say successful, because it is truly a great street. It has transit, bike lanes, a fine-grained built form, and lots of interesting retail:

But it is somewhat unique in that a large section of it is a one-sided retail street. Meaning, it looks like this:

This obviously isn't a fatal flaw. It remains a wonderful street. And there are lots of examples of thriving one-sided retail streets. Ocean Drive in Miami Beach immediately comes to mind (notwithstanding the fact that locals tend not to go to it).

But conventional retail wisdom does dictate that two sides are better than one. Consider this 2023 report by Cushman & Wakefield ranking the top global main streets across the world. All of the streets that I have been to before are two-sided:

• 5th Avenue in New York between 49th and 60th (above 60th is, incidentally, when the street converts to single-sided because of Central Park)

• Montenapoleone in Milan

• The main street of Tsim Sha Tsui in Hong Kong

• New Bond Street in London

• Avenues des Champs-Élysées in Paris

• Grafton Street in in Dublin

• Passeig de Gracia in Barcelona

• Bloor Street in Toronto

These are all two-sided retail streets.

None of this is to say that the west side of Roncesvalles has nothing going on. It has a diverse mixture of uses, including churches, libraries, apartments, and many other things. But I think there is still an argument to be made that it has been hamstrung by restrictive zoning.

That said, Roncevalles is defined as a "major street" in Toronto's Official Plan and so it does fall under the city's new Major Street Study. Maybe that changes things.

Boy, population densities can be so misleading. The typical approach is to just take the number of people and divide it by a given area. This then gives you something like X number of "people per square kilometer." The problem with this approach is that there are countless factors that can skew your result.

Hong Kong, for instance, is really dense. But as a city, it also has a lot of green space, mountains, and other undeveloped areas. Only about a quarter of Hong Kong's land is developed. So when you divide total people by its administrative boundary area, it is going to appear less dense than it really is.

One alternative approach is to use a method known as population-weighted density. The way this works is that you take the average densities of smaller more granular subareas and then weight them by the population of each subarea. It is a little more complicated to calculate, but the overall intent is to try and capture a density figure that more accurately reflects what the average person experiences on the ground.

And this is exactly the method that Jonathan Nolan decided to use in his new website CityDensity.com. What his site allows you to do is compare population-weighted densities across various cities, and then see how it tapers off as you move outward from their city centers.

Once again, it is hard to beat Paris' supremely dense mid-rise built form:

Well, that is, until you check out Hong Kong:

Charts: CityDensity.com

Okay, so I haven't tried it yet. But Apple Vision looks pretty awesome and the people who have tried it seem to be very impressed by it. The best article that I have read, so far, is this one here by Ben Thompson (of Stratechery). He gets into some of the tech details and explains why Apple is probably the only company in the world that could have created a device like this.

For those of you who are interested, Apple Vision is still technically a VR device, even though it is being marketed as an augmented reality (AR) device that allows you to stay engaged with the world around you. This last part is true, but it is all done digitally through 12 cameras that capture the world around you and then display it back to you.

So experientially, yes, it is an AR device; however, the tech behind it is actually just exceptional VR.

But this is not the point of today's post. The point I would like to make is one that Ben raises at the end of his article. After praising Apple Vision's achievements, he goes on to argue that the arc of technology is one that is leading toward "ever more personal experiences." In other words, it is increasingly about individual, rather than group, use cases.

And this is one of the first things that I thought of when I watched the Vision Pro keynote. "Wow, this looks like a really cool way to watch and experience a movie. But how do I do that with my partner? I guess we both now need Vision Pros. And what about families with a bunch of kids? That is a lot of Vision Pros."

But maybe this doesn't matter. Ben's point is that it's probably not an accident that this technology arc is happening at the same time as a larger societal shift away from family formation and toward more feelings of loneliness. Indeed, the number of single-person households has been steadily increasing in the US since the 1960s. The current figure sits at more than 1 in 4 households.

So there is an obviously dystopian narrative that we could all tell ourselves here. It is one where everyone works from home, plugs into virtual workplaces, and then flips over to other, more exciting, virtual worlds when it's time to unwind from the stresses of the former. And if you think about it, this isn't that much of a stretch compared to what many of us do today.

Whatever the case, in my mind, none of this is any reason to become bearish on cities. Humans will still be humans. And none of this tech is going to replace the feeling of enjoying a perfect pesto gnocchi in an impossibly narrow laneway in Milan, or drinking a caipirinha on the beaches of Rio de Janeiro while being surrounded by shockingly beautiful people.

Or at least let's hope so.