Category vs. idea

Here's what most people mean when they say "I have an idea":

"I want to make a fitness app."

That's not an idea. That's a category. A category is a shape an idea might one day fit inside. You cannot build a category. You can only build a specific thing, for a specific person.

Watch the difference.

Category: "I want to start a clothing brand." Idea: "I want to make a black hoodie with a hidden phone pocket for my older sister Aisha, 16, who keeps dropping her phone every time she sprints to catch the bus."

Category: "I want to build something with AI." Idea: "I want to build a tool for my Algebra 2 teacher, Mr. Park, who spends two hours every Sunday night grading 90 nearly-identical homework problems by hand."

The first version sounds bigger. The second version is actually buildable. A 13-year-old with the second version will ship something real in six weeks. A 13-year-old with the first version will be back where they started in six weeks.

A real idea answers three questions, in this exact order:

1. Who is the person? Use their actual name.
2. What is the problem? "Spends 40 minutes a day searching for X." Specific.
3. How do you know it's a problem? Did you watch them? Did they tell you? Did you do it yourself?

If you can answer all three, you have an idea. If you can't answer all three, you have a category.

You're about to see a real one.