What's the biggest thing you wish you'd validated before launching?

The more I build Launch Pilot, the more convinced I become that most startup mistakes happen long before launch.

Not because founders can't build.

Because they build without enough validation.

That's why I'm creating Launch Pilot—to help founders review their product, uncover blind spots, identify launch risks, and make better decisions before investing months of work.

I'm curious:

What's one thing you wish you'd validated before launching your last product?

I'd love to learn from your experiences.