intelligent civilizations

This equation was thought of in the 1960's by the scientist Frank Drake. It states that there are 10,000 intelligent civilizations in our galaxy, it's Drakes equation!. The first bit of the equation is how many stars are made per year in our galaxy's nebulae. The answer is 10 per year. Then how many of these planets will have planets. the answer is 90% to 100%. Then how many of those planets are in the habitable one of their star where it is neither too hot or too cold. The average is 1 or 2. The next bit is how many of those planets will develop life. The answer is 50% (I think) Then the ones that will develop intelligent life. Well that can be anything from 1% to 100% depending on how many natural disasters there are every year. So once the intelligent life develops there are two more keys for intelligent life, the important of the two is that the life form must learn not to destroy themselves with their own technology and the last one being that the life must develop interstellar communications. Also i mentioned that i would tell you how to prevent our extinction, well most natural disasters are not bad ebough to make us extinct but meteorites and climate changes. Well climate changes happen over hundreds of thousands of years so our descendents will figure out that. But meteorites are very common so we need to prevent our extinction one idea is to put rocket engines on the meteorite and push it out of its orbit, and the more possible idea is that we blow up the bject with a nuclear bomb, well thats it followers tune in tommorow for a new update!