The four filter test I use to validate product ideas fast

I’ve wasted months on ideas that never had a chance.

Now I use a simple four-filter test before building anything.

1. The problem must be in the audience’s top three priorities.
2. I must already understand that audience’s world.
3. They must expect to pay for the kind of solution I’m offering.
4. The value proposition must be stupid simple.

If any filter fails, I drop the idea.

These four rules saved me months of wasted work.

Which filter do you ignore most often?