Every box contains a brain. The brain knows which objects are in its box, and can tell you things about them. Each time you ask (by "booping" the object on the brain) the brain makes a note of it. That's called the Boop Log.
Here are some pictures of our early designs...
We're still fairly early in the design phase, but our brains are made of:
You can have a poke at the code, if you're so inclined.