

This is an important chart from a recent study commissioned by Greater Wellington, New Zealand. The study looks at the cost benefits of urban intensification and the above chart shows the relationship been density and infrastructure costs. For this study, they specifically looked at the costs that local governments face in providing road, public bus transport, and "three-waters infrastructure." I hadn't heard this latter term before, but it refers to drinking water, wastewater, and stormwater.
What they obviously found was that there are real economies to higher densities. More density lowers the per dwelling cost of delivering infrastructure. In the case of three-waters infrastructure, it doesn't even really matter if you're proximate to reservoirs or treatment plants. The bulk of the cost lies in the local connection pipes. So what matters most is how many dwellings you can service off of the main lines -- even if these lines need to be upsized.
The goal of this study is to enable more support for smart growth within the Wellington region:
Regional councillor Thomas Nash says the report should give councils confidence to press on with plans that support compact mixed-use development in and around city centres and connected by high quality public transport.
“Regional growth needs to be smart growth. This report clearly shows that the best bang for our buck is to focus on upgrading existing water, public transport and local roading infrastructure so that we can build better quality, compact residential form, with improved amenities within our cities and towns,” Cr Nash says.
Of course, this doesn't just apply to Wellington. Every city should read the study.


Decentralization, in the crypto/blockchain/web3 sense of the word, is a crucial thing. Here is an excellent article talking about why it is the key innovation of blockchain technology and why it is a central feature in this new emerging web3 world.
But of course, it can all get very complicated. So I thought this -- and in particular the sentence in bold below -- was a good way of describing the benefits:
"...decentralization enables web3 systems to be credibly neutral (they cannot discriminate against any individual stakeholder or any group of stakeholders, which is critical to incentivize developers to build within ecosystems) and composable (to mix and match software components like Lego bricks). As a result, web3 systems function more like public infrastructure than proprietary technology platforms. In contrast to the gated software of Web2, web3 protocols provide decentralized internet infrastructure on which anybody can build and create an internet business. Crucially, in web3, this can be done without the permission of the original deployer of the protocol or the need to use a centrally controlled interface."
This resonated with me because think about how important public infrastructure is to our cities. Most of us take it for granted that, when we need it, we can just plug in and access electricity, water, sewer, and other public infrastructure.
But throughout history, these services have been fundamental to the growth of our cities. They empowered scale and better health outcomes, among other things. So it's exciting to think that we are now living through the creation of something kind of similar in tech.
Image: a16z
I am so tired of sensational headlines:
The Ontario Line will zip across the core and up to Eglinton, easing gridlock and alleviating TTC misery. It will also plow through peaceful Toronto neighbourhoods, displacing homes, businesses and everything in its path.
I know exactly what business model it is serving and why it is done, but I'll ask the question anyway: Why do we need to make everything out to be a problem?
In this case, we're talking about a new and important piece of city building infrastructure. A subway line that will run through the densest parts of this country and alleviate congestion at key interchanges, as well as broadly across the city.
It is something that we, as a city, have been griping about for many decades. And now, it is finally happening! Will it involve constructing things? Yes. Will it actually displace "everything in its path?" No.
But as we all know, this is the way media works today. They set the agenda (i.e. tell us what we should be terrified and/or pissed off about) and then they sell our attention. And an effective way to do that is to make sure that the headlines get us really worked up.