Drake Argumentative Analysis

For long time, the only place which life emerges in the universe was Earth, and the fraction of life bearing planets on which intelligent life appears in Milky Way was (according to the given value) . So it was difficult to define that there is intelligent life outside of the Earth. However, in our calculation, we plugged the number 2 in instead of 1, and this makes a very significant change because it indicates intelligent life emerges outside of Earth. Thus, the importance of the fraction 2 is that it proves the emergence of the intelligent life outside of Earth, and it dramatically increases the possibility of the existence of intelligent life in other planets.
The number value for brings great change into both Drake Equation and to our