Rebuking the "Good Old Days"

When you hear someone longing for the "good old days," take it with a grain of salt. (Laughter and applause.) Take it with a grain of salt. We live in a great nation and we are rightly proud of our history. We are beneficiaries of the labor and the grit and the courage of generations who came before. But I guess it's part of human nature, especially in times of change and uncertainty, to want to look backwards and long for some imaginary past when everything worked, and the economy humme...

 Our Collective Memory

Taken globally, the set of traces that we leave in the world does without doubt add up to something. It is through operations on sets of traces that I understand an event that I take part in. Tolstoy wrote about the foot soldier in the Napoleonic wars. The soldier he describes cannot have the experience of the war he is waging nor the battle he is fighting because the only “global” traces of the war are inscriptions—notably, maps and statistics. There is no scalable observation that mov...