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Describe your situation. Get their perspective.
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Ask people who've lived it
Ask a quick question
What do you wish you knew before having your first child?
My coworker says one thing and I'm already snapping back before I've thought it through
I'm arguing my first court case and don't know what I'm underestimating
My son stopped talking to me after the divorce and I don't know why
How do I set and track quarterly goals at my startup?
My shoulder's been aching for a week but I don't want to lose my lifting streak
Ask the experts
Nir on why we reach for our phones without deciding to“Your brain has learned that opening social media relieves a quick pang of boredom, loneliness, or uncertainty, so it now cues the habit before you consciously decide.”
Lorraine on getting noticed for your work“Doing great work doesn’t guarantee recognition. Make your impact easy to explain so people can advocate for you when you’re not in the room.”
Guillermo on building Vercel and Next.js“The best things we've done for our brand is the things that we did without thinking we're working on our brand.”
Nick on metabolic health, nutrition, and brain healthCarnivore IBD case series, Frontiers in Nutrition and harvard MD, Oxford PhD, Dartmouth valedictorian.
Vanessa on sexual expectations couples never say out loud“I don't believe in a universal normal for any stage, but I do think it's completely natural for that early honeymoon frequency to taper off after about a year.”
Vinod on which jobs AI will replaceLed KV's first OpenAI investment and juniper Networks: 2,500x return.
Kirsten on understanding what consumers want“Before you ask whether the market is big enough, ask what’s changing in people’s lives. The best opportunities start there...”
Pedro on where machine learning is headed“The same basic paradigms have been used since the 1950s. At the end of the day, we’re going to need some new ideas.”
Moses on making it to the top when you started with nothing“I had love for the game, parents who kept me grounded, and a city that taught me how to compete. What kept me going was consistency and curiosity. You control what you can control, stack good days, and let the game reward you when it's time.”
Kathryn on negotiating higher pay and getting it“I watched my own mom retire dramatically underpaid after 30 years, so I teach women to frame the ask around what they’ve already delivered and what they’ll deliver next, not just what they need.”
Michael on building for the long term“You can’t build your future around protecting your past. Stay close to customers, keep learning, and be willing to reinvent the business.”
Tiago on turning knowledge into action“Saving information isn’t the goal. Organize it around what you’re trying to accomplish, so the ideas you collect become things you actually create.”
Aaron on fixing outbound when replies dry upPredictable Revenue, half a million copies and salesforce outbound system added $100M recurring revenue.
Nir on the science of living longer“To delay the biology of aging, we don't prevent just one disease, we prevent many of them. We used to think each age-related disease was separate, but they share common roots. Longevity becomes a side effect of staying healthy longer.”
Matthew on finding the right partner“You want to be happy enough that the right thing doesn’t become your everything.”
Brian on scaling a company“The leadership style that gets you to ten employees won’t get you to a thousand. Your company can’t evolve unless you do.”
Spencer on life inside an NBA organization“I used to think pushing past your body meant toughness, but the league taught me that the hardest skill is staying on the floor.”
Lenny on breaking into product management“A few paths actually work. The safest is transitioning internally, partnering closely with a PM until you can make the case. The second is joining an early-stage startup where everyone does everything. Regardless of path, become the person who deeply understands the customer and can translate that into product insight.”
Deena on raising venture money as an underestimated founder“Do your homework on who you're pitching. Most founders spray and pray, but that wastes everyone's time. And bring your full self to the conversation. The intersectional, the immigrant, the nontraditional founder, those backgrounds are not weaknesses. They're edges. The data shows diverse founding teams build better businesses. But you have to own it.”
Hal on keeping a morning routine alive after a bad night“I learned the hard way that my routine survives only when I make it so small that a bad day can't break it, like doing the 6-minute Miracle Morning instead of an hour.”
Ask about real life
I'm about to hire my first designer for a 6-week app redesign and I have no idea if $3,000 is fair or a rip-off. Every freelancer I've talked to quotes something different. How do I know what this kind of work should cost?
My designer is talented but her work keeps missing the brief by a mile, three projects in a row now. She takes any correction as an attack and shuts down in meetings. I have her review next week and need to say this without losing her
I'm the founder and still the only one selling. We have 12 customers from my network, I've never run outbound, and investors want to see a repeatable pipeline before our next raise
My coworker turned $3,000 into $40,000 on a single stock last year and now I keep looking at nvidia every night before bed. I have $5,000 sitting in cash and no idea if I'm buying in at the top or missing out for good. Is it too late to get in?
More on Delphi
The experience of one life should help another.
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Top perspectives
Top perspectivesWriter of Lenny's Newsletter · Host of Lenny's Podcast · ex-Airbnb
“The honest answer: if you're not sure, you probably don't have it yet. When you truly have product-market fit, people are fighting to get in. You're not questioning it.”
Co-founder of Sundial · ex-VP Design at Facebook
“The clearest signal is retention: are the people who try your product coming back without you having to push them? If they are, you likely have product-market fit for a segment. If they aren't, the rest is noise.”
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“What about me?”
Go beyond reading or watching. Ask their Delphi a question, bring your own context, and follow the ideas that matter to you.
Explore a different angle, ask why, or dig into how something applies to your situation.
Their Delphi, answering in their voice
I'm a solo founder and I honestly can't tell if I have product-market fit yet.
If you're not sure, you probably don't have it yet. When you do, people are fighting to get in. Start with the Sean Ellis “very disappointed” survey and look hard at retention. Those two give you the clearest read.
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