Board Thread:General Mod Discussion/@comment-26486187-20150908001842/@comment-27723099-20150908203153

Rocket Engineer wrote: Heartgold1234 wrote: We know we aren't alone red. The universe is infinite, it is only a matter of time. Unless there is some sort of evolutionary barrier which kills off any species that reaches it, and we are the only species to pass it. Or, we could have not passed it yet, and we are all going to be killed off sometime in the future. Or a predator species will receive a signal we beam off into space and they will come and kill us because we are a potential threat to their empire. Or, there could be thousands of sentient species out there, but they are not trying to see if others like them exist because they are afraid that there is a predator species out there, and any attempts to communicate with others could lead the predators to them. Which means the whole universe could be cowering, afraid of something that might not even exist.

Edit: Actually all these involve us not being alone, although you could consider being dead to be alone. Even thinking you are alone is pretty much the same as being alone. Practically speaking of course. Given that the space is infinite, there will always be infinite other sapient races in the universe at any given time, just not all in the same place. Given that time is infinite, there will always be infinite other sapient races (even at the same place), just not all in the same time.

Now you have to prove that both time AND space are not infinite to back up your statement :P

As another example: Not every number is a prime number, and the further you go, the rarer they get. But there is an infinite number of natural numbers and so there also has to be an infinite number of prime numbers.

Everything is possible in infinite space, as long as it does not contradict the basic rules of that space (the laws of physic).