How would the world be different if the average human life span were 200 years?
How would earth be different if humans had an average lifespan of 200 years?
How long will it be before the earth will not be able to sustain the human population? How long can earth sustain humanity? What is the estimated age of mankind on earth? Why does 120 years seem to be the limit for the human lifespan? Approximately how old is the earth? How is earth 6000 years old when ancient people in the Bible lived for hundreds of years? How many humans would it take to repopulate the earth? What is the age of the Earth? Can planet Earth sustain a human population of 100 billion? How old is the earth? If nearly everyone on earth died for some reason. How many people would be needed to repopulate earth without any inbreeding effects? How long will earth last? How is old is Earth? What is the life expectancy of the world's oldest person? Can 100 years on Earth be equal to about 500 years on Mercury due time dilation? How many human beings have lived on this Earth since the beginning of the time? Is it scientifically possible to extend the human lifespan? What is the ideal life expectancy for humans? How much of the earth has not been physically discovered by humans? Theoretically, how long can a human live? What would happen if the earth stopped rotating in a span 5 years? Would be be able to adapt or would we die? If our sun were to immediately stop radiating heat and light (with no other cataclysmic effects), how long would the earth continue to sustain life? Why haven't humans gone beyond low-Earth orbit for over 40 years? What areas of science have implications for the age of the earth? What is the aim of a human being on earth, if they will be bones after 100 years at most? If the vital organs of human beings were replaced with prosthetics or bionics, could they live longer than 100 years? Life expectancy in history was quite low. If you count only the people that reached a certain stage in life, what would the expected life length be? What changes could evolution make to humans in about 10,000 years? If Mercury and Jupiter were habitable like earth, and three babies were born at the same time on each, after say ten yrs, how would they have aged? Is it possible for any planet to sustain life?