I love this concept from Stewart Brand, that different aspects of the world change at different speeds. So, fashion and art changes and cycles faster than commerce which is faster than infrastructure, and in turn governance, culture and finally Nature. The outer layers tend to innovate faster and so pull along, or be stabilised by, the lower, slower layers. At the boundaries you get constructive turbulence, say between Uber and governance, or how the growth in video streaming requires Internet infrastructure to come along with it. I’m sure you can find counter examples, but as a framework for thinking about big complex things I find it quite handy.

Pace layers

Our ability to sense position and movement of joints and limbs. It’s how you can tell where your right foot is now even without looking. Alcohol screws with it and touching your nose with your eyes closed if often used as part of sobriety tests. Maybe try it yourself next time you’re drunk?

Proprioception

As giving makes people happy, what better way to make someone happy than to give something they can give to others. Not all the time maybe, but I reckon it’ll be a hit.

Give gifts others can give