Question

[Rolgoat]

Is the reason why parallel space-time continuums are low 1 c because they do not intersect at any angular axis?

 

[Benimōru]

Didn't you ask the same question yesterday?

But it's no. We don't directly call such spaces as L1-C anyway, because the fifth axis they have is non-significant in size.

As for the 5th axis, again no. The fact that they never come close is just a 'side' effect of the 5th axis that space has.

This is already explained in detail on one of the pages.

It should be recognized that travel between universes is not feasible unless through the use of a portal or similar unusual mechanisms. This is because it should be impossible for two distinct universes to be connected by a path that only goes through regular 3 dimensional space. Universes must be separated by something other than 3 dimensional distance or physical barriers, otherwise they would be considered to both be part of one large universe for our tiering purposes.

The most typical example is the presence of a higher dimensional space serving as a separator. In other words, two separate universes coexist in a four dimensional or even higher dimensional space, occupying different position along some additional dimensional axis. Therefore, in order to travel between such universes, the movement must be through the higher dimensional space between them. To summarize, two realms are separated through a higher dimension space if

1. A larger space encompasses all the universes or space-times
2. This space is of a higher dimensional nature.​

In short, the reason why there's an extra axis that separates them is because it requires an extra axis that connects these universes and allows people to travel between them. The fact that they never come close to each other is just a side effect of that.