Today I worked with A.C. to create a simple explanation of his secret sauce. The VCs are getting to the end of their due dilligence. It is designed to get investors, potential employees and the media just enough understanding so they say "Aha! Now I get it. So that's what it's all about! Man, that is way cool!" Your explanation must be in less than two sentences and cannot give away the secrets.
It needs a proprietary name, one that has some suggestion of what the secret is all about, but it is your special name for it. That means on one else can have it. It is yours, exclusively.
The description should include the name of the new category you are aiming to dominate. Categories are things like rental cars, microprocessors, digital recorded music and so on.
Your words need to describe benefits end users and customers get from using it. Numbers are not critical here, but will be asked for later by your audience, so be prepared.
Think about your description like a black box: you describe a lot about it but not its inner works. That will remain a secret until either you have a patent on it, or you die.
Most of all, it has to be real. It must describe what goes on in the real world when someone uses it. It cannot be fiction.
BOTTOM LINE: You need a clever note about "how it works" that is inspiring to your stakeholders. They include investors, employees and the media. Eventually it will include strategic partners and customers, as well as end users. They need your short story about your secret sauce. When they "get it" you'll be on your way to a powerful unfair advantage. Your competition will start to moan.