What is the conclusion of the argument that uses the Drake equation?
a) The chances of life existing on any given planet is extremely small. However, there are so many planets that the chances of life existing in the universe is high
b) We are probably alone in the universe, since we have not yet encountered proof of alien life
c) Since any intelligent alien life we come across will be more developed than us, they are probably more ethical than our civilization as well
d) Any life form that develops the capacity to destroy itself will eventually destroy itself