Speculator: Lost in space

Wall Street, we have a situation. We're accelerating to the outer limits and about to crash into Ursa Major, and no-one can find the brake pedal.' But no-one in ground control seems worried as equities accelerate into infinity. The US equities market, roaring and soaring with no visible means of support, seems to be a perpetual motion machine. But there is no such thing. Some scientists have decided that the miracles of quantum electrodynamics and cosmology allow the universe to carry on expanding