Worth Reading 081325


The current state of digital identity is a mess. Your personal information is scattered across hundreds of locations: social media companies, IoT companies, government agencies, websites you have accounts on, and data brokers you’ve never heard of.


It turns out that, if you have your domain hosted by a big provider (we happen to use GoDaddy), it’s easy to turn on DNSSEC. But I think it says a lot that it took us this long (and the stimulus of working on a new security book) to get us to turn on DNSSEC


As we left the laboratory, I thought about how we in the computing field build a tremendous number of things that really cannot be called beautiful and then are commonly tossed aside without a thought.


The accelerated migration to advanced services will be accompanied by unprecedented complexity, and security and reliability concerns that must be addressed by the network-engineering and formal-methods communities.


Quantum scientists have long treated quantum entanglement as precious cargo, forging fresh links for every secure message or computation. A new theoretical study proposes a thriftier route, letting an existing pair pass portions of its entanglement down an extended chain.

Fast Following Fails

Fast following fails.

Whenever I hear a leader in a technology business say, “We’re going to fast follow because it’s the most profitable place to be,” I know I’m looking at a failed organization. I didn’t come to this conclusion by thinking about it. I came to this conclusion by observing it repeatedly.

After observing it, however, I wanted to understand why this particular strategy fails so consistently and spectacularly. Why? To understand my theory, we need to start in a somewhat different place than business—we need to start with the nature of goals and humans.

You can place goals into two buckets: first things and second things.

First things are foundational. If you are a technology company, the first thing is building a stable, resilient, and flexible platform (or foundation). The products you sell will only be as stable as your platform. The innovation you achieve will only be as consistent as your platform is.

Second things are goals you can only achieve once you’ve built the first things.

Here’s the hard truth no one wants to hear: Generating revenue is a second thing.

Humans become what they do.

We all want to believe we can become what we desire—but we actually become what we do. In Aristotelian philosophy, this is called the virtue ethic. You become physically virtuous by exercising your body. You become intellectually virtuous by thinking about hard things.

Companies are the same way. A company can only become innovative by innovating. Innovating becomes a habit—or it doesn’t.

What does this have to do with fast following?

The theory of the “fast follower” is: “I’m going to let other people spend money on research and development, I’m going to let them carry the burden of innovating and making all the mistakes, then I’m going to jump in and scoop up their innovation.”

This seems sound at first glance. It’s a compelling story.

It doesn’t work, however, because you are chasing another organization’s success without building their platform. You’ve placed a second thing—revenue generation—in first place, and first things—building a platform and innovating—in second place.

When you put building a platform and innovating on top of that platform in second place—when you “fast follow”—you lose the habit of building a solid platform and the habit of innovating.

Building a platform on which you can actually ship innovative products—no matter who invented them—and cultivating a mindset that seeks out good innovation creates a culture of innovation. When you build the mental habit of waiting until someone else’s innovation succeeds and then building “just enough platform to make it work here, too,” you are building an unstable platform and killing innovation.

“But what about all those fast-following success stories?”

One reason “fast following” success stories abound is that you can make a lot of money for a little while with the fast-following strategy. Another is that when an organization first moves to fast following, they have the leftover platform and innovation culture to carry them for a little while.

But time will out all fast following organizations. When the market shifts, fast followers will have neither the platform to shift with it nor the innovation to change with the market.

By putting second things first, the fast follower loses the first things that make the second thing possible.

“But I’ll make a lot of money until it fails, right? I don’t care about the future, just making a lot of money quickly!”

Sure, if that’s the life you want to lead, go for it. If you want to live a life devoid of community, and you want to lie on your deathbed and say, “I don’t care what damage I caused,” if sheer wealth is all that matters, feel free to fast follow.

If you want to build something, however, go build it.

Fast following gives up building platforms and innovating for immediate success, and winds up failing to innovate or succeed.

Worth Reading 072725


We sketch out the enabling technologies for AI. They include search, reasoning, neural networks, natural language processing, signal processing and computer graphics, programming and conventional software engineering, human-computer interaction, communications, and specialized hardware that provides supercomputing power.


For decades, thanks to the low latency enabled by Remote Direct Memory Access, or RDMA, a method of allowing CPUs and then GPUs and finally other kinds of XPUs to directly access the main memory of each other without having to go through the entire network software stack, InfiniBand found a niche and was one of the reasons why Nvidia shelled out $6.9 billion to acquire Mellanox Technologies more than five years ago.


Shipments of tape storage media increased again in 2024, according to HPE, IBM, and Quantum – the three companies that back the Linear Tape-Open (LTO) Format.


In this episode of PING, APNIC’s Chief Scientist, Geoff Huston, discusses a day in the life of Border Gateway Protocol (BGP). Not an extraordinary day, not a special day, just a regular day.


Dumb phones represent the laziest possible solution to a complex behavioral problem. They’re the dietary equivalent of having your jaw wired shut.

Worth Reading 072425


They call themselves Scattered Spider. They’re probably younger than your college freshman. They live in suburban bedrooms across America and Britain, and they’ve just brought industries to their knees.


The RPKI makes use of RSA signatures. These “traditional” digital signatures are expected to be vulnerable to attacks with powerful quantum computers. While no quantum computer currently exists that can break traditional cryptography, the development of quantum computers is progressing rapidly, and it is expected that they will be able to break RSA and other traditional cryptographic algorithms, be it in several years or several decades.


Analysing Transmission Control Protocol (TCP) SYN segments, the initial step in the TCP three-way handshake, can reveal patterns and anomalies in network traffic, providing insights into potential threats.


One way to establish if a QUIC connection is viable without paying a time penalty is for the server to signal the capability to use QUIC to the client in the first (TCP/TLS) connection, allowing the client to initiate a QUIC session on the second and subsequent connections.


These are not bugs but are inherent limitations of the technology. The same limitations make it unlikely that LLM machines will ever be capable of performing all human tasks at the skill levels of humans.