"I've come up with a set of rules that describe our reactions to technology"

(Douglas Adams) - and even though Adams died in 2001 these rules will hold true for a long, long time.

1. Anything that is in the world when you're born is normal and ordinary and is just a natural part of the way the world works.

2. Anything that's invented between when you're 15 and 35 is new and exciting and revolutionary and you can probably get a career in it.

3. Anything invented after you're 35 is against the natural order of things.