Clarke's three laws

Clarke's three laws

1. When a distinguished but elderly scientist states that something is
   possible, he is almost certainly right. When he states that something
   is impossible, he is very probably wrong.
2. The only way of discovering the limits of the possible is to venture a little way past them into the impossible.
3. Any sufficiently advanced technology is indistinguishable from magic.
4. For every expert there is an equal and opposite expert.[1999]