Cameron Moll, the first speaker after lunch at dConstruct, is currently Interaction Design Manager at the headquarters of the Mormon church in Salt Lake City.
A trick question: What takes longer, heating water in a microwave for 1minute 10 seconds or heating water in a microwave for 1 minute 11 seconds?
Answer: heating water for 1 minute 10 seconds (Dur - i said it was a trick question). Why? Because getting a microwave to run for 1 min 11 seconds involves hitting the same button (1) 3 times, whereas making it run for 1 min 10 seconds involves hitting 2 different buttons (1 and 0) - finding the extra button typically takes a user more than 1 second.