The predictions actually won't change at all! None of the predictions in the article actually use # of humans as a data point. You aren't gonna input 800m to

The predictions actually won't change at all! None of the predictions in the article actually use # of humans as a data point. You aren't gonna input 800m to a calculation and get any different result - no calculation uses that number. The author uses all species of earth to estimate a species size - population density ratio. This works if you remove humans from the equation. The only other data point specific to humans is our weight.