And then, just when you think that you have experienced all the wonders that this world has to offer, you round a peak and suddenly think you're doing the whole thing over again, but this time on drugs.

Stomp stomp. Whirr. Pleased to be of service. Shut up. Thank you. Stomp stomp stomp stomp stomp. Whirr. Thank you for making a simple door very happy. Hope your diodes rot. Thank you. Have a nice day. Stomp stomp stomp stomp. Whirr. It is my pleasure to open for you... Zark off. ...and my satisfaction to close again with the knowledge of a job well done. I said zark off. Thank you for listening to this message.

It is known that there are an infinite number of worlds, simply because there is an infinite amount of space for them to be in. However, not every one of them is inhabited. Therefore, there must be a finite number of inhabited worlds. Any finite number divided by infinity is as near to nothing as makes no odds, so the average population of all the planets in the Universe can be said to be zero. From this it follows that the population of the whole Universe is also zero, and that any people you may meet from time to time are merely the products of a deranged imagination.

Time is an illusion. Lunchtime doubly so.

Beethoven tells you what it's like to be Beethoven and Mozart tells you what it's like to be human. Bach tells you what it's like to be the universe.

And so the Universe ended.

So you can imagine what happens when a mainland species gets introduced to an island. It would be like introducing Al Capone, Genghis Khan and Rupert Murdoch into the Isle of Wight - the locals wouldn't stand a chance.