Left side: Biologists explaining photosynthesis with a ridiculously complex biochemical pathway involving electron transport, ATP, NADPH, and the Calvin cycle.
Right side: Physicists explaining the same concept with a simple circuit diagram and calling it "Photonsynthesis."
Classic physicist move. Why use 47 arrows and chemical compounds when you can just draw a battery and a light bulb? Next they'll explain DNA replication with two paperclips and a rubber band.