<blockquote>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.
  1. Anything that’s invented between when you’re fifteen and thirty-five is new and exciting and revolutionary and you can probably get a career in it.
  2. Anything invented after you’re thirty-five is against the natural order of things.

[ Source : Douglas Adams, The Salmon of Doubt
via Confused of Calcutta ]