A few days left to check this film out...

[Darwinian]

You see, now you're talking my kind of language.

String theory, M theory, multiple universes, time as a dimension that we travel through at the speed of light..

I've always thought of time as a bit like one of those interactive books were if you make one decision you turn to page 10 and if you choose another, you turn to page 15, or whatever.

The quantum world suggests that every possible action that could ever take place is played out in one of these realities and that each universe, at the scale of the atom and smaller are linked with each other. It's not that particles necessarily wink in and out of existence from nowhere, it's simply that they are whizzing through the multiverse and we simply get a glimpse of them.

Also, the theory of multiple dimensions is very real. The trouble is that we only exist in three physical dimensions and no matter how hard we try, we simply cannot imagine where a fourth or fifth etc. would be. This does not mean they don't exist, in fact, if many branches of physics and mathematics are to make sense then they must.

The image below is a tesseract, or hypercube. And as my little sproglets will tell you (because I've drummed it into them) it's the 2D representation of a 3D shadow cast be a 4D cube.



The Universe itself is a case in point. The Universe, as far as can be determined, has no edge and no centre and yet is finite in scale. Also, the way that the Universe is expanding strongly suggests, to me anyway, that our three dimensions are acting in exactly the same way as the surface of a balloon that is being blown up.

On the surface of a balloon you can have no centre and no edge unless you travel through the 'mythical' third dimension.

ooh, I've found a balloon piccy..



And there's no reason why time could not have always existed. All we have worked out so far is what happened just after the big bang (if there was one ) and we know nothing of before.