Apply the principle of exponential growth of a population of cells in a culture (as described in Question $1-12$ ) to the cells in a multicellular organism, such as yourself. There are about $10^{13}$ cells in your body. Assume that one cell has acquired mutations that allow it to divide in an uncontrolled manner to become a cancer cell. Some cancer cells can proliferate with a generation time of about 24 hours. If none of the cancer cells died, how long would it take before $10^{13}$ cells in your body would be cancer cells? (Use the equation $N=N_{0} \times 2^{t / G},$ with $t$ the time and $G$ the generation time. Hint: $\left.10^{13} \approx 2^{43} .\right)$