Tonight, the 3rd of March 2015 the figures go like this: World Population 7,299,564,650 Births 24,263,468 Deaths 10,160,226

Arithmetic, Population and Energy.

The Exponential function is used to describe the size of anything that grows steadily, for example 5% per year (a fixed fraction).

Doubling Time - when grows 100% T2 = 70/%growth per unit time

The Greatest Shortcoming of the Human Race is our Inability to Understand The Exponential Function. VIDEO.