
See the gap produced between China and South Korea. See Japan shine! Come back in thirty years and see if there's been any change. back to where it was just a century ago?
And what if that 150 year window was all we had to broadcast our light to the Universe? What chance some alien race would see it, note it and set out to meet and greet it? This 'window of opportunity' is what so vexes futurologists who are concerned with the problem of contact. But there's another angle to this, too, which doesn't involve UFOs and alien invasions: Which areas are dark now, and which are - as Brecht put it 'standing in the light'? where is all the electricity coming from to power those lights?
The current answer is: oil. Who is drinking whose milkshake?
And what happens when the lights go out?
It may be time to start brushing up on those good old fashioned literacy skills again...