Sometime yesterday, the UN officially declared the birth of the world’s 7 billionth baby. Once all the numbers were in, I couldn’t help wondering: how long do we have left before we out-birth GMail’s storage limit?
I didn’t know how quickly the world’s population is growing, so I asked Alpha:
1.21% / yr
Using a super-accurate stopwatch and the GMail homepage, I took down a couple values to approximate the current rate of expansion of GMail storage:
|Time (seconds)||Size (MB)|
Comparing the exponential growth (r1) of global population (C1) with the linear growth (r2) of the Gmail storage limit (C2), the number of years (n) before they meet is:
C1(1 + r1)^n = C2 + r2(n)
Solving for n under the assumption that nothing will change, Gmail should be all set for at least the next 88 years.