Our product accidentally found a bug in Postgres! I always hold my company to the highest standards when it comes to software verification. One of the internal metrics we track is how often we find rare correctness issues in some of the world's most well-tested systems. Some of the customers we work with are building things where any unexpected failure could be catastrophic. That often means we verify all the upstream dependencies their products rely on in our environments, too. Sometimes, that turns up interesting findings like this one: while verifying a customer’s software, our simulation engine found a rare bug in Postgres.

their average user is 76 years old, and they keep selling out.

A frustrated MSTR holder just confronted Michael Saylor. He put $219,000 into the stock for his kids' future and watched it crash by over 70% to $60,000. He asked what answers management had for him. This was their full response.

Facebook VP of Growth Alex Schultz: “Retention is the single-most important thing for growth” Alex walks through how to calculate a retention curve for your startup (graph the percentage of monthly active users on the y-axis versus the number of days from acquisition on the x-axis). As he explains: “If you end up with a retention curve that asymptotes to a line parallel to the x-axis, you have a viable business, and you have product/market fit for some subset of market.” If you do not have a retention curve that flattens out, you do not have product/market fit and none of the growth hacking or virality tactics that people love to talk about will work. “Focus on getting to product market/fit… If you don’t have a great product, there’s not point executing well on growing it, because it won’t grow. The #1 problem I’ve seen inside Facebook for new products and the #1 problem I’ve seen for the startups I’ve advised has been that they don’t actually have product/market fit when they think they do.” Source: @ycombinator (Oct 2014)

Should Salesforce rebrand as SalesforceSlack to capture its AI-era power in bots, coding, and surfaces? Watch the video below and vote. ❤️💪

Excited to be building this together. 💚

Most people think starting a company without a co-founder is a bad idea. We believe the opposite: solo founding will be the default way great companies get started. Applications are now open for the Solo Founders Program. 3 months in SF: "solo, together" + 1:1 support + $100K

We're extending Claude Fable 5 access on all paid plans, as well as keeping Claude Code’s weekly rate limits 50% higher, through July 19.