After leaving Scribd, I immediately discussed new ideas with Paul Graham, and we decided to apply to Y Combinator again, even though we didn't have a product yet. I co-founded a subscription billing service called PipePay, but we didn't want to compete directly with Stripe, which was doing really well at the time.

Airbnb's first product lacked payments and a map view, demonstrating that successful startups often begin with very basic versions of their products.

Magic pivoted from a blood pressure coaching app to a more successful product after realizing their initial idea wasn't gaining traction.

Brex started as a virtual reality headset company but pivoted back to payments after realizing they lacked the necessary hardware expertise.

Breck's, a credit card for startups, pivoted from a VR headset idea to a successful business by quickly realizing their initial idea wasn't viable and iterating through multiple concepts.

Brex pivoted from a VR hardware headset idea to a credit card for startups, achieving product-market fit quickly and raising hundreds of millions in just two years.

We realized that if PayPal failed, it would create a massive loss of over $200 million in venture capital, so we decided to pitch our best ideas to each other, including an early version of LinkedIn.

The first major pivot for PayPal was transitioning from a focus on encryption technology for mobile to developing a cash payment system on mobile devices.

My co-founder Andy and I wanted to skip traditional jobs after college and dive straight into our startup, which we applied for with an idea similar to mint.com for businesses.