Dalton Caldwell is Managing Director and Group Partner at Y Combinator. Prior to YC, he was the co-founder and CEO of imeem (acquired by MySpace in 2009) and the co-founder and CEO of App.net. During his time at YC, he’s advised more than 35 YC unicorns, including DoorDash, Amplitude, Webflow, and Retool, and has worked across 21 different YC batches. He’s also racked up more than 6,500 office hours with founders. In our conversation, we discuss:
• Why founders need to adopt the mindset “Just don’t die”
• The most common reason startups fail
• When to pivot, and characteristics of a good pivot
• The concept of “tar pit ideas” and examples of bad startup ideas
• Why investors say no to startups
• The importance of market size in investment decisions
• The pitfalls of founders over-delegating
• Effective ways to talk to customers
• 20 ideas Dalton is looking to fund
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Find the transcript at: https://www.lennysnewsletter.com/p/lessons-from-1000-yc-startups
Where to find Dalton Caldwell:
• X: https://twitter.com/daltonc
• LinkedIn: https://www.linkedin.com/in/daltoncaldwell/
Where to find Lenny:
• Newsletter: https://www.lennysnewsletter.com
• X: https://twitter.com/lennysan
• LinkedIn: https://www.linkedin.com/in/lennyrachitsky/
In this episode, we cover:
(00:00) Dalton’s background
(04:41) The value of simple advice
(07:04) Dalton’s advice: “Just don’t die”
(08:39) Knowing when to stop
(11:45) Deciding to pivot
(14:26) Characteristics of a good pivot
(17:53) Knowing when to pivot
(19:03) Zip’s journey and finding a market
(21:22) Why Dalton says to “Move towards the mountains and the desert”
(23:45) Tar pit ideas
(26:49) Understanding why investors say no
(29:14) The importance of market size
(32:16) Avoiding over-delegation and hiring senior people too early
(36:43) Why startups fail
(40:30) Effectively talking to customers
(45:17) Examples of startups hustling to talk to customers
(48:01) Patterns of successful startups
(52:05) YC’s Request for Startups
(55:37) Early days of Silicon Valley
(01:05:33) Contrarian corner: growth hacking for early startups
(01:09:28) Failure corner
(01:11:15) Closing thoughts
(01:12:22) Lightning round
Production and marketing by https://penname.co/. For inquiries about sponsoring the podcast, email [email protected].
Lenny may be an investor in the companies discussed.








this Dalton looks and sounds dumb, with his regular laughing for non funny stuffs he says. Google up and yeah he is not regular person.
I always recommend your channel to my trading friends. You really know what you're talking about!
Hi Lenny, you and Dalton discussed startups pivoting, but didn't cover it fully. I'm curious about what exactly happened for companies like Instagram, Slack and others which went through massive pivots or several rounds of pivots, and the parameters under different scenarios. Is it possible that you could invite one or two founders who went through that process and can talk about pivoting from the founder's perspective?
every founder mantra: https://youtu.be/sqOgyNfHl1U?si=Q7dZY8t7AkWL7hD-
80% of startup videos about B2C, 20% about B2B, 0% about B2G
Really enjoying the content
Excellent Pod Cast Dalton is a great guy a down-to-earth person, oh and very funny.
Brilliant, love to hear from Dalton and co. Great content
Amazing tutorial video, it really works thanks for sharing
nice video thanks