The Compound Years · Issue #6 · August 2026
The second build always ships faster
The second of anything you build ships faster than the first -- because the first one trained you.
01The experiment
Built Braindex in 17 days. Twice the speed of Pi-Squared.
The second app didn’t need me to figure out distribution, App Store screenshots, or pricing for the first time. The first one had paid those costs already. The second one just felt fast -- but it was really the dataset compounding.
02The lesson
Everything is just building your own dataset.
Reading and listening is great, but it doesn’t stick until you act on it. The lessons I remember three years later are almost never the ones I read once -- they’re the ones I tried, failed at, and changed my behaviour because of.
03The founder
Eric Ries shipped IMVU updates fifty times a day in 2004.
Before he wrote The Lean Startup, Eric was an engineer at IMVU pushing code to production fifty times a day, when most companies shipped once a quarter. Each push gave him real user data the same afternoon -- and the team improved faster than competitors waiting to ship the perfect version.
04The mindset
Speed is the byproduct of doing the same thing twice.
The build I shipped this year took half the time. Last year’s build did the slow learning for me -- the second one just got to skip that part. I genuinely think that’s how compounding actually feels: you don’t notice the curve, you just notice you’re moving faster.
05The question
What would you build in 17 days if you didn’t let yourself slow it down?
Hit reply and tell me. I read every one.
Forward to one person who’s been “almost ready” on something for too long.
-- David