Correct on cuts of supply. Wrong in detail why, and wrong in the promised effectiveness of more investment. All civilisations grow in complexity and energy-resource consumption, with decreasing marginal returns of more investment, until this actually becomes negative. Negative as building lots more renewable energy infrastructure will require more mining and more GHG emissions, at the time our carbon budget for a safe climate is virtually gone, and biosphere climate tipping points of positive climate feed backs are already dangerously happening now. More investment is already failing and could make many things worse. Only real collapse in earth usage and ecological footprint can help.