Seems now mainstream opinion has it as a success, whereas as recently as 2019, I recall it being seen as a failure. It would be a complicated system to model, more complex than I implied, my bad, and my apologies. It's a challenge, given the input solar energy would need to be taken into account, and this would be good news for the it when modeled. But surely it impacts food availability, putting all that food energy into fuel, no? Are there no concerns of food shortages in Brazil?