Radiolab’s "Good" Explains Social Networking

If you’ve not ever heard of political scientist Robert Axelrod and his computer modeling of altruism in the early 1980s, immediately go and listen to the podcast of a RadioLab show—public radio’s best hour— entitled “Good.”

Do that now.

Skip to around the 41 minute mark, and you’ll hear the start of Jad and Robert chatting with Axelrod. Aside: Often when I read something interesting, I imagine it spoken in a Robert Krulwich voice to decide if it would make a worthy post.

Anyway, “Good” is the best popular introduction I’ve come across as to why we’ve evolved to be civil to others.Continue reading

The Helpfulness of Crowds

For the past few weeks I’ve been trying out a few of the collaborative recommendation sites that are  currently on the scene. My interest was initially piqued by an NYC startup or two, then I learned about Aardvark, now part of Google and one of the most successful of the purely crowdsourced Q&A sites.

You ask a question  and one of Aardvark subscribers is likely to have an answer. I was quite impressed that I got a quick and meaningful response about a good Spanish white wine to match with seafood.

Not all of the cloud-based oracles work this way.  Many instead rely on machine-learning techniques (decision trees, Bayesian classifiers, clustering, …) in which the mileage of your answers will vary based on the terrain of the data.

Then I learned about a mega success story from MetaFilter, a community weblog, in which two young Russian women were saved from entering the sex trade by MetaFilter members. Continue reading