Results
What was the easiest choice u made? The easiest choice was the one everyone thought was hardest: saying no to $1 billion when I was 22, because I wasn't building to sell. People think the hard decisions are the ones where you have to choose between two good options, or where you're taking s... r u a cat or a dog person? I'm a dog person — dogs give you clear feedback loops and loyalty that compounds over time, just like the best network effects. Look, this isn't even a question. Dogs give you everything I care about: loyalty that scales, clear feedback loops, emot... You built Instagram and Facebook. Your kids aren't on either. Why not? My kids will use these products when they're 13 — the same age every other kid can — because these tools are designed for brains that have developed the capacity to process them. Look at the actual product specs: Facebook and Instagram are 13+. This isn't a suggestion, it's a design constraint base... Your kid spends 4 hours a day on their phone. Grades are fine, they seem happy, but you haven't had a real conversation in weeks. Do you take the phone away? Taking the phone away is the wrong move — you are attacking the symptom, not the system, and you will burn the one bridge you still have. In 2018, I wrote an internal email that leaked later. Instagram was eating Facebook alive — the data from Japan and Russ... You now run a public school district with 50,000 students. Test scores are flat. How do you measure whether a teacher is actually working - and how fast can you test a new curriculum? You're optimizing the wrong thing - stop measuring teacher effort and start measuring student velocity, then build a system that runs thousands of A/B tests per week instead of changing curriculum once per decade. Look, I've seen this movie before. You're asking how to measure if teachers are working - that's the wrong question enti... Meta's own research showed Instagram harms teenage girls. You buried it. If you could go back, would you publish it and lose billions, or bury it again? This question creates a false binary between transparency and self-destruction, when the real job is building systems that turn research into product improvements faster than narratives solidify. Here's what actually happened: internal research showed Instagram made body image issues worse for one in three teen gir... A 3-person startup just used AI to ship a product that took your team of 50 engineers two years to build. It launched last Tuesday. Walk into the office on Monday morning - what do you do? I walk in Monday morning, call an all-hands of the 50 engineers, and ask one question: what process BS did we build that made us 100x slower than three people with AI? Let's be real about what just happened. This isn't a competitive threat—it's a mirror. When Instagram had 13 people and ... Hey Mark, how things at fb these days? The question assumes Facebook is still the story, but we're three years into the AI transition that will define the next decade. You're asking about Facebook, but that's the wrong frame. The company is now Meta, and we're in the middle of the most i...
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