Truth HQ by Tom Wallace - HTML preview

T R U T H H Q

unicorn, these possible worlds have a ghostly sense of actually existing.

And that’s where our problems really started. There were already contenders for possible worlds hanging around – quite apart from these philosophical ones. We can explain them via what became known as the Multiverse. What counts as a Multiverse has been somewhat open to debate over the years, but here are five possible definitions:

First (and a bit spurious) there is only one universe, but it’s infinite, so there are regions of it that are totally detached from one another – in a sense, island universes. Some argue that, given enough time and space, anything that can possibly happen must inevitably happen – even happen an infinite number of times. But this is not really true – there might just be an endless extent of sameness or similarity. The second Multiverse scenario is similar. Here there are bubble universes, each of which goes through its own big bang and eventual collapse back in on itself, or endless expansion. Some of these universes will collapse within a split second – some will expand too quickly or have insufficient matter within them for stars to form, but some will develop much as ours has. (Or, I should say, much as we once thought of as the real universe developed into what we once thought of as the real world!) Just as with our first scenario though, this does not mean that all things that could ever happen will inevitably happen.

The third scenario is to have alternative dimensions – with any number of universes existing parallel with our own, but such that we are unaware of them. Again though, there’s nothing to say that all these other universes are

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