Imagine Harold's purple crayon for applications.

When you're looking at a perfect fidelity one-size-fits-all app, you don't want to tweak it, you'll mess it up.

Perfect fidelity and polish is only feasible for a given scale of market.

But if you relax the fidelity you can enable something very new.

Hand hewn. Rough and ready, but hand crafted by you, something you feel a direct connection to as an extension of you, not alienated from.

Imagine describing a goal and having an application assemble itself.

"Help me organize a birthday party for my four year old."

And you can ask it to tweak itself, or "draw" extra buttons on it that just works.

Low fidelity, but powerful.

It will feel like an empowering toy.

The same way Minecraft invites you to play and modify.