

PMF Observations: Speed is the only startup moat—& why most founders lose it.
16 snips Sep 25, 2025
Discover why speed is the only true advantage for early-stage founders, as one founder turns an idea into customers in just three weeks. Delve into the importance of maintaining an MVP mentality post-launch, ensuring continuous iterations. Learn from Twitter's journey to success through 300 small changes. Unravel the reasons why teams slow down over time and how to combat this decline by fostering a culture focused on rapid experimentation. Stay in that 'day one' mindset to keep the momentum alive, even at $10M ARR.
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Speed As The Primary Early Moat
- Speed of execution is the primary competitive moat for early-stage founders.
- Other moats like brand or network effects typically require scale and time to matter.
Three-Week White-Label Win
- A founder I invest in built a white-label reseller program and signed customers in three weeks.
- That rapid cycle contrasted with many founders who take months to reach a similar MVP.
Reps Trump Idea Quality
- Idea quality differences are usually small compared with execution volume.
- The decisive factor is how many ideas (reps) a founder can test quickly to find what works.