Sorry that I was shouting before.. I was in a bit of a shouty mood.
I don't think that we are the only planet with life on it in the whole universe. My point was that the distances between solar systems with potentially inhabitable planets are such that it becomes impossible for any living thing to travel it. The human brain is not suited to imagining these distances. Most people have enough difficulty imagining how far away Australia is from the UK. For interstellar travel, not only do you have to take a huge ecosystem with you, but you also have to take enough fuel to get there, and extra fuel to carry that fuel, etc.
You might talk about wormholes, teleportation, black holes, etc., and even though physicists agree that it's theoretically possible to utilise these for transport, they know that it is impossible in practice, and will never be achieved by the human race. Furthermore, you have to have the fuel to get to the nearest black hole and control its oscillations, speed, etc., in order to use it for transport.
And yes, I do still think that crop circles are made by humans. That BBC article said the circle appeared over two nights. I believe the farmer(s) employed perhaps twenty other people to help them do it, in order to attract attention and to tempt tourists to visit.
I don't think that we are the only planet with life on it in the whole universe. My point was that the distances between solar systems with potentially inhabitable planets are such that it becomes impossible for any living thing to travel it. The human brain is not suited to imagining these distances. Most people have enough difficulty imagining how far away Australia is from the UK. For interstellar travel, not only do you have to take a huge ecosystem with you, but you also have to take enough fuel to get there, and extra fuel to carry that fuel, etc.
You might talk about wormholes, teleportation, black holes, etc., and even though physicists agree that it's theoretically possible to utilise these for transport, they know that it is impossible in practice, and will never be achieved by the human race. Furthermore, you have to have the fuel to get to the nearest black hole and control its oscillations, speed, etc., in order to use it for transport.
And yes, I do still think that crop circles are made by humans. That BBC article said the circle appeared over two nights. I believe the farmer(s) employed perhaps twenty other people to help them do it, in order to attract attention and to tempt tourists to visit.