The most successful startup ideas often sound counterintuitive or bad at first, like Airbnb or Dropbox, which faced skepticism but ultimately succeeded due to unique insights.

We don't claim to know which ideas will succeed; even the founders of Airbnb had no idea they would become as big as they are today.

Many founders and investors initially dismissed the ideas behind Airbnb, Coinbase, and Stripe as poor or overly ambitious, underestimating their potential.

Initially, many people thought Uber was a crazy idea, but it quickly gained traction and proved to be successful.

The transition from air beds to allowing entire homes to be rented was crucial for Airbnb's growth, transforming it from a niche idea to a billion-dollar company.

Conclude by emphasizing the potential impact of your idea and its scalability, even if it currently addresses a smaller problem for a limited audience. Everything that could be truly great starts off as something very small, like Airbnb, which began with conference travel in San Francisco using air beds and serving breakfast.

Airbnb's evolution from renting airbeds to entire homes illustrates the necessity of adapting your startup's approach to meet market demand.

The idea for Airbnb originated when my co-founders, Joe and Brian, decided to rent out their apartment to designers attending a conference, leading to the realization of a larger opportunity.

After our initial launch, we didn't see immediate success and even explored creating a roommate matching website before pivoting back to Airbnb.