This, of course, is a ridiculous extrapolation. By focusing on the rate of change (doubling) every three months we of course get an absurd result.
Instead, if we simply extrapolate the absolute growth per unit time then assuming the baby went from 10 lbs at birth to 20 lbs at three months (doubling), and we have 40 such time units until age 10, then we get a much more reasonable expected growth to 400 lbs. Which of course is much more reasonable for a 10 year old. Totally reasonable.
This, of course, is a ridiculous extrapolation. By focusing on the rate of change (doubling) every three months we of course get an absurd result.
Instead, if we simply extrapolate the absolute growth per unit time then assuming the baby went from 10 lbs at birth to 20 lbs at three months (doubling), and we have 40 such time units until age 10, then we get a much more reasonable expected growth to 400 lbs. Which of course is much more reasonable for a 10 year old. Totally reasonable.