Backpressure is the signaling of failure from a serving system to the requesting system and how the requesting system handles those failures to prevent overloading itself and the serving system. Designing for backpressure means bounding resource use during times of overload and times of system failure. This is one of the basic building blocks of cr... See more

duplication is far cheaper than the wrong abstraction

We are entering an era where someone might use a large language model to generate a document out of a bulleted list, and send it to a person who will use a large language model to condense that document into a bulleted list. Can anyone seriously argue that this is an improvement?

Another observation I’ve made is that starting with a performant core can ultimately drastically simplify the architecture of a software project, relative to a given level of functionality.

What sets distributed systems engineering apart is the probability of failure and, worse, the probability of partial failure. If a well-formed mutex unlock fails with an error, we can assume the process is unstable and crash it. But the failure of a distributed mutex’s unlock must be built into the lock protocol.

Generative A.I. appeals to people who think they can express themselves in a medium without actually working in that medium.

It's now become unavoidably clear to me that I've been doing each of these things poorly. The job, the making, the pleasing, and, yeah, the being at home. And I can't live with that for another day. So, I've chosen which one has to go. At least in the way it's worked to date. Which is to say not working.

For the last several years, work-sample were our most important hiring decision factor.

We relied on them almost completely, and in doing so, we multiplied the size of our team and retained every single person we hired

Even a mid-range Macbook can do 10x or 100x more transactions per second on its SSD than a supposedly fast cloud local disk, because cloud providers sell that disk to 10 or 100 people at once while charging you full price. Why would you pay exorbitant fees instead of hosting your mission-critical website on your super fast Macbook?