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My brother wants the house and I want to sell it, how do we split this fairly?

My brother wants the house and I want to sell it, how do we split this fairly?

Family
Every screen in my app uses a different shade of blue and I don't know how that happened

Every screen in my app uses a different shade of blue and I don't know how that happened

Design
I'm an engineer who wants to move into product management

I'm an engineer who wants to move into product management

Technology
My shoulder's been aching for a week but I don't want to lose my lifting streak

My shoulder's been aching for a week but I don't want to lose my lifting streak

Fitness
I want to break into a friend group at work but I don't know how to start

I want to break into a friend group at work but I don't know how to start

Social
My best performer has been missing deadlines for two months straight

My best performer has been missing deadlines for two months straight

Leadership

People worth learning from

Real Life Situations

My ex texts me at midnight about custody swaps and calls me a liar in front of our seven-year-old. The court gave us fifty-fifty but every handoff turns into a fight I didn't start. I've tried apps, mediators, sticking to the exact words in the agreement. What works when the other parent wants a war?

My ex texts me at midnight about custody swaps and calls me a liar in front of our seven-year-old. The court gave us fifty-fifty but every handoff turns into a fight I didn't start. I've tried apps, mediators, sticking to the exact words in the agreement. What works when the other parent wants a war?

A partner featured us in an email to 60,000 subscribers, but the visitors reached a generic homepage that didn’t explain why the product was relevant to them

A partner featured us in an email to 60,000 subscribers, but the visitors reached a generic homepage that didn’t explain why the product was relevant to them

I found out a coworker makes 40% more than me. We have the same job, same title, same tenure. I can't unsee it. Now every meeting, I'm doing the math on what I'm worth

I found out a coworker makes 40% more than me. We have the same job, same title, same tenure. I can't unsee it. Now every meeting, I'm doing the math on what I'm worth

I turned 40 this year and realized I've been debugging other people's code for two decades. Younger engineers on my team seem to enjoy it more than I do now. I keep wondering if that means I'm burned out or just done

I turned 40 this year and realized I've been debugging other people's code for two decades. Younger engineers on my team seem to enjoy it more than I do now. I keep wondering if that means I'm burned out or just done

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I'm a solo founder and I honestly can't tell if I have product-market fit yet.

Top perspectives

Lenny Rachitsky

Writer of Lenny's Newsletter · Host of Lenny's Podcast · ex-Airbnb

Lenny's NewsletterLenny's PodcastAirbnb

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.

Julie Zhuo

Co-founder of Sundial · ex-VP Design at Facebook

The Making of a ManagerSundialFacebook

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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Lenny Rachitsky

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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