[eps]

Conversely, it'd be cool to play it on an large empty office building.

One window = one pixel.

[slow_typist]

Like Blinkenlights https://m.youtube.com/watch?v=PZRUtKYCpms

[mlukaszek]

Or, in Krakow, Poland in 2012 :) https://www.youtube.com/watch?v=5KitN5HFGWc

[galaxyLogic]

Right but what if every window was an outward pointing LCD screen each having their own node-per-pixel GoL !:_)