Comment by subtenante

We have picked ourselves up, precisely, by using fossil energies, the ones that are causing the current troubles, and the ones that are getting less and less available. What will happen in the future can not be inferred by how we managed in the past to get where we are ; I have no doubt that humanity will survive the collapse of our societies, but there is no possible way to know where the equilibrium will be restored in terms of number of individuals on the planet once the stress on fossil fuels is too big. It may be anywhere between where we are now and the hundred millions, combined to a dramatic lowering of the life expectancy.