h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

In computing, there is no such thing as an endless loop. The computer will eventually break. Likewise with the record player and the London water supply infrastructure. Who's to say that it's different with the world if time itself is on a loop?

Well, there's an unspoken precondition when computers are involved. This precondition reads something like "Unless there's a black-out, some fuse is blown, the web gets taken down, electrons decide to stop moving, Earth stops rotating, or a few other things change their inner workings, the following piece of code is meant to do the following (blah blah blah...)".

Now, London just has had its black-out so you've certainly got a point there

So it's 'under normal conditions'. With abnormal conditions, any infinite loop is resolved.

yes, that's the definition of 'abnormal'.