The economics of texting

One thing I never understood about the way mobile operators work is why texting (aka SMS) is so freaking expensive. I figure its something like what the drug dealer ‘Nick’ in New York Magazine’s recent feature on profit making said about maximizing profit:

Sell to many users in small quantities. “It’s like taking a pound of coffee and [...]

Talking Robots and Diagnostics

I had an interesting incident with the Roomba today. It hadn’t done much cleaning during its scheduled cleaning times this week, so I made it do a run today morning. After a while, it (he?) just stalled and started beeping. I tried emptying its (his) dirtbag, cleaned its (his) brushes etc and tried again. No luck - he [...]