Technical products demo well and describe badly. In a demo the product carries itself: a question goes in, an answer comes back, the room leans in. Almost none of your marketing happens in that room. It happens in a caption, a search result, a thumbnail, or an answer assembled by someone else's AI, and nobody there can watch your product think.
This test takes five minutes and needs one person who does not work with you.
The test
- Find someone outside your field who has never seen your product. Not an investor, not a friend in tech.
- Give them only what a stranger would get: your homepage, or one post. No demo, no walkthrough, no talking over it.
- Take it away.
- Ask them to tell you, in one sentence, what it does and who it is for.
Reading the result
If they can say it back, your explanation works, and you can go spend money on distribution.
If they describe your machinery ("it uses AI to search things") but not the change it makes, your copy is accurate and useless. Rewrite it as a scene: who was stuck, on what, and what changed.
If they cannot say anything, do not buy attention yet. You would be paying to put a confusing product in front of more people.
The failure this catches
Founders usually fail this in a specific way. The explanation is technically correct and tells the reader nothing about their own life. Machinery is easy to write and impossible to care about.
Why it matters more than it sounds
If understanding only transfers in a demo, your growth is capped at the number of demos you can give. Every channel you buy before passing this test is spending against that cap.