Sambot wrote:Rogerd wrote:Sambot wrote:I can't say I even understand any of that. Depending on the game though I have used things from different universes.
I am quite happy to help, and try to explain if that would help?
That would help. Thanks
Okay so easy bit first.
Level 1 Multiverse: Each universe contains a 'you', most will look the same but will take different choices to what you have done, some divergence will be slight, to huge ones. The laws of physics remains the same in them all - just the options / choices we take in our lives. But because there are only so many permutations that can be taken, some other versions will lead the exact same life.
Level 2 Multiverse: Well this is a collection of Type 1's, such that some have different time-space dimensionality, and possible alternate physical starting conditions, but the laws remain the same.
Level 3 Multiverse: This is the controversial many-worlds theorem. Each choice, and option, you take creates a parallel universe. This sort of came about due to really small particles that when given a choice directions - open slits, left or right, did not just go through one; but both! To some extent this also happens in a Type 1 only far away in 3-D space, except here in another quantum realm.
Level 4 Multiverse: This is where things get really nuts! Where the laws of physics, space-time, in anything you care to mention can change. Square universes, four dimensional torus universes, magic existing!
A good media example of Type 1 & 2 is the Xeelee saga. It is set in a Type 2 Multiverse. But their Type 1 their enemy, and enemy of all life, the Photino Birds existed in every version, so they created the Ring (millions of light years across) to enter another Type 1 where they were absent.
Another series by Baxter, the Time Ships, follows on from HG Wells Time Machine. In this, a polity is stuck in their universe, each of which is a bubble so they cannot leave - limited by light speed. So they devise a way to leave and enter another Type 1, where light speed limit does not exist, and it is possible to travel to other universe if you have enough velocity.
For instance Star Trek likely uses a Type 3, which we see in the episode Parallel, where Worf meets alternate selves.
If you want a really good book on this kind of thing - Gurps Infinite Worlds is one of the best out there, it also covers time travel, and what the different methods of travel exist between times and universe exist.
I hope this helps you in some way?
Any questions please feel free to ask.