Board Thread:General Discussion/@comment-24.187.23.77-20130405191704/@comment-67.233.243.68-20130420133117

If Vilgax was real, we probably would not know. The only times he bothered earth (prior to his one on one battle with Ben for the fate of the planet) were never things the general populace was made aware of. That's good for all you puny humans out there: if you don't have some object of incredible power, such as, say, the omnitrix, Vilgax doesn't have the time for you.

And for those of you who don't believe in aliens, consider this:  Estimates say there are a hundred or more billions of galaxies in the universe; let's conservatively say 100,000,000,000. Galaxies range from ten million to one hundred trillion stars. Let's average that at about 50,000,000,000,000. So, there you have 5,000,000,000,000,000,000,000,000 (5 septillion) stars. It is hard to say how many of them have planets, but a very conservative estimate of one in one thousand works for me, as that still leaves 5 sextillion planets. And since where there is one planet, there are often more, that puts us at tens of sextillions of planets easily.

How rare do you think life is, if out of all of those planets, it only ever appeared on earth?