Those stats also do not indicate how much the agricultural land is being used to grow animal feed. In fact if a crop is grown but inadequate quality for selling for humans, it is sold at a massive discount as animal feed. Reducing the variability in crop yields, as vertical farming should do, should make the 2.3% more efficient.

We need to be careful about how we reduce livestocks globally. Naively interfering in the market such that the price of meat goes up could be disastrous as Brazilian farmers could accelerate the slashing of rain forests to make way for more profitable livestock farming.