[mystifyingpoi]

It's equally silly to the method my mom used for clock in the bathroom when I was a kid: she would set the clock to be 5 minutes later, so we would rush to get to school on time. Needless to say, I just learned to subtract 5 minutes from it and that was the end.

[yard2010]

Can this be solved by a random clock? A clock which never tells you the real time - it adds randomly 1-10 mins every morning

My question is if people can't adapt to it, would it be a helpful technique?

[anticristi]

It would be interesting to experiment with providing people only with a sundial. :)))))