The Secret is to Bang the Rocks Together

inexpensive anti-gravity and inertia-less drive is invented. And the hi-jinx begins.

A news report brought to you here on the Sub-Etha waveband, broadcasting around the galaxy, around the clock. We'll be saying a big hello to all intelligent lifeforms everywhere and to everyone else out there, the secret is to bang the rocks together guys ... -- DouglasAdams