Shards
it's nothing, until suddenly it's something.
drag broken pieces together and watch the whole thing resolve out of nowhere
A pile of angular scraps carries no meaning on its own — recognition does not arrive gradually as pieces connect, it arrives all at once, the moment enough of them lock into the shape they were always part of. Two fragments only belong together if they are the exact two halves that one cut produced, so there is no fudging a near-fit into a real one.
Concepts: repair, recognition.
An interactive you play with one thumb, on Wundr.