Miniature deltas

Miniature deltas, originally uploaded by jjn1.

Walking along a Donegal beach at low tide we were struck by the way the combination of water, tides and sand enacts (or mimics) high-speed geological phenomena. A curving stream heading down the beach cuts out mini-cliffs, which it then undermines, precipitating massive collapses. At another point, as here, a slow-moving stream mimics the deltas of great rivers. I suspect that this is why so many people like living by the sea: things are always changing — through the day as well as through the year.

Larger size here.

Digital capitalism 101

This morning’s Observer column.

Need a crash course in digital capitalism? Easy: you just need to understand four concepts – margins, volume, inequality and employment. And if you need more detail, just add the following adjectives: thin, vast, huge and poor.First, margins. Once upon a time, there was a great company called Kodak…

LATER: It occurred to me that “Digital Capitalism” would make an interesting university course. One of the textbooks I would use is Digital Capitalism: Networking the Global Market System by Dan Schiller, plus his How to Think About Information.

This recent seminar presentation gives a flavour of Dan in action:

Another essential text would be Information Rules: A Strategic Guide to the Network Economy by Carl Shapiro and Hal Varian. It’s now relatively old, and yet still seems highly relevant.