"Ere many generations pass, our machinery will be driven by a power obtainable at any point in the universe. This idea is not novel... We find it in the delightful myth of Antheus, who derives power from the earth; we find it among the subtle speculations of one of your splendid mathematicians... Throughout space there is energy. Is this energy static or kinetic.? If static our hopes are in vain; if kinetic - and this we know it is, for certain - then it is a mere question of time when men will succeed in attaching their machinery to the very wheelwork of nature." -- Nicola Tesla, late 19th century
Tesla:
Man Out of Time
by Margaret Cheney
In my tinfoil hatish way, I'm convinced that there are many that would gladly commit mass murder to keep that from happening.