If i find the population of the amoeba to be filled up till the edge at 12 pm...wen do u think it to be exactly half?..the answer is exactly inute minute earlier that is at 11.59.now the amoeba is the human being.if we consider the death rate tobe so negligible bcause of advancement in medical field both the situations can be considered as same.the population wud double in 70 yrs time period, thats is the lifetime of a human being...now the population of india is in billions..by the next 70 yrs.it will be unimaginable square foot for an individaula person ..cud be even inches.think abt it