founders’ mistakes

Paul Graham’s “18 Mistakes That Kill Startups” should be mandatory reading for every founder.
Not because it tells you how to build a startup.
But because it shows how most startups quietly die.
The dangerous part isn’t obvious failure.
It’s slow self-sabotage (trust me, I know)
A few patterns show up again and again:
→ Founders build for “personas” instead of real users
→ They solve problems they don’t deeply understand
→ They wait too long to ship
→ They hide behind planning instead of learning from customers
Startups don’t die because founders move too fast. They die because founders wait too long.
Another pattern: distance.
Distance from the product.
Distance from users.
Distance from reality.
Great founders stay painfully close to both.
They talk to customers constantly.
They watch how the product is used.
They fix things immediately.
Momentum matters more than perfection.
Some other lessons founders learn the hard way:
– Treating the startup like a side project rarely works
– Raising too much money too early creates artificial pressure (dont share that with VC lol)
– Outsourcing core product work kills velocity
– Over-negotiating deals wastes time that should be spent building
– A bad cofounder is often worse than no cofounder
None of this advice sounds revolutionary. That’s the trap.
The most dangerous mistakes in startups are the ones that feel reasonable in the moment.
The real job of a founder isn’t just building. It’s avoiding the quiet decisions that slowly kill momentum.
What would you add to the list?
#Mistakes #Founders #momentum