Your Share of the Worlds Resources
A couple of months ago, I discussed how much land each of us would have, if the global land mass was distributed evenly. Now, I'll look at some important natural resources. Return of Investment When discussing resources and reserves, it is very important to distinguish them. I'll illustrate with an apple tree that provide me with apples to eat. The first apples that I pick are the big, juicy ones between one and two meters above the ground. Why those apples and not smaller, half rotten apples that lie on the ground or big apples five meters above the ground? The answer is Return of Investment . The effort (investment) of picking easily accessible, big and juicy apples is low and the returns are high. When all the low-hanging fruit is taken, I'll pick the slightly smaller and non-perfect apples. The returns are diminishing and thus the Return of Investment falls. Perhaps, I decide to go for the high-altitude apples, taking a risk of falling, buying a ladder or asking