Scott Adams is enthralled by what he calls the "exobrain":
Everything we create becomes a de facto data storage device and brain accessory. A wall can be a physical storage device for land survey data, it can be a reminder of history, and it can be a trigger of personal memories.
A business is also a way to store data. As a restaurant owner, I was fascinated at how employees came and went, but their best ideas often stayed with the business, especially in the kitchen. The restaurant was like a giant data filter. The bad ideas were tested and deleted while the good ideas stayed, most often without being written down.