1. If something is marginally interesting, is it of (a) great interest, or (b) limited interest?
2. If a problem is alive and kicking, (a) can you ignore it, or (b) must you do something about it?
3. If something crops up, were you (a) expecting it, or (b) not really expecting it to happen?
4. If you duplicate a document, do you (a) send it to someone, or (b) make a copy of it?
5. Do two consecutive events happen (a) at the same time, or (b) one after the other?
6. After physical exertion, do most people feel (a) tired, or (b) full of energy?
1. Red lights come up just as often when the driver is not in hurry; it’s just that the disadvantage of the red light is considerably less if time is not critical. The false part of the perception is that red lights happen more than green lights. The reason for this is simply that a driver has more time to think about a red light than a green light, because while the latter is gone in seconds and indeed is an experience no different from just driving along the open road—the red light forces a change of behaviour, a moment of exertion and stress, and then a deprivation of freedom for a minute or so. Red lights stick in the mind, while green lights are instantly forgotten.