Clive Thompson
Right-Angle Doodling Machine
A Game by Clive Thompson- You draw one single line. It can be as long as you like.
- To start the line, you put your pen down.
- You can make right-angle turns only, either 90 degrees or -90 degrees.
- You cannot back up. You must always move forward.
- You don’t lift your pen until you’re ready to stop. When you lift the pen, the doodle is done.
Trees and graphs
A tree is a kind of graph, but a graph can be considerably more complex than a tree.
I have reason to believe, which for brevity’s sake I will treat elsewhere, that the most complex class of processes and structures we humans can consciously prescribe, reduces mathematically to a tree. A tree has a top, bottom, left and right. Its branches fan out from the trunk and they don’t intersect with one another. They are discrete, contiguous, identifiable objects which persist across time. Trees are Things.
Software and websites, however, reduce to arbitrarily more complex structures: they are graphs. A graph has no meaningful orientation whatsoever. No sequence, no obvious start or end—at least none that we can intuit. It is better considered not as one Thing, but as a federation of Things, like the brain or a fungus network, or perhaps a composite artifact left behind from an ongoing process, like an ant colony or human city.