TIMSY TURVY

A ceiling that is alive, made of tiny cells that keep growing into each other. Pick a door.

• The ceiling

  This screen becomes the projection. Fullscreen it on the biggest thing you own and let it grow.

  open the ceiling

• The controls

  Run the show: push words and pictures, dim it, change the look.

  take the desk

• The pad

  Draw with a finger. Your strokes seed every ceiling that is open right now.

  start drawing

How it works. Every screen runs its own simulation, so nothing is streamed and nothing waits on a server. What travels between us is the gestures — a stroke from the pad, a word pushed from the desk — which means every screen sees the same performance and grows its own weather out of it. Two ceilings side by side will never quite match, and that is the nice part.

This is overhead-projection-style imagery: slowly moving, expanding patterns. If you are prone to motion sickness or visual migraine, be careful with fullscreen viewing.