I spent my childhood in an imaginary world - probably because I needed an escape. I think that's one of the reasons people have imaginations - because they can't maintain existence here.
Most research into life's murky origin has been carried out by chemists. They've tried a variety of approaches in their attempts to recreate the first steps on the road to life, but little progress has been made. Perhaps that is no surprise, given life's stupendous complexity.

