There is no other side. We've used all of the easily-accessible high-energy-density resources on the planet -- once technology drops below the critical level n

There is no other side. We've used all of the easily-accessible high-energy-density resources on the planet -- once technology drops below the critical level necessary to produce wind/solar/hydro/nuclear, we'll never be able to recover a high-energy society. We'll never get off the earth, let alone out of the solar system. And even if we waited millions of years, bacteria has learned to digest lignin, so there will never be another Carboniferous Period.