The difference between Virtual Time and space is ambiguous. When considering concepts like 4D UI or 4D Rendering, one may wonder about the difference between x, y, z, and t.

For example, in terms of 4D Rendering, time and space are treated on an equal footing. However, if we try to implement physical laws in this context, we need to be aware of the differences between time and space.

The current difference between physical time and space can be described as follows:

  • Instantaneity:
    • Time allows us to observe only a specific moment, such as t=3, in the world.
      • Well, this is a tautology.
      • But in terms of human cognition, we can think of “moments” separately from physical time.
    • Space allows us to observe a range, such as x=1 to x=5, all at once.
  • Causality:
    • If t1 < t2, an event at t=t1 can influence an event at t=t2, but not vice versa.
      • If we consider more relativistic aspects, the speed of light also comes into play, but let’s not go into that.

What about virtual spacetime? In virtual spacetime, it is not necessary for virtual time to possess all of these characteristics. It could have an axis that is more “time-like” or more “space-like.” Time-likeness and Spatiality could be used to describe this. When defining the 4-dimensional space (x, y, z, t), we typically consider the unit vectors as (1,0,0,0), (0,1,0,0), (0,0,1,0), and (0,0,0,1). But in reality, as long as they are linearly independent, we can set them arbitrarily, which could be possible in a virtual setting. (kawahiii)

  • +1 (blu3mo) It is unclear whether human perception can grasp this concept. (kawahiii)
  • That’s where we could rely on Interface to make it possible, I suppose. (blu3mo)
    • If we can handle 3D with a 2D UI, it might be possible to handle 4D with a 3D UI, using a rough analogy.
    • Rather than that, I’m interested in how we can make it possible. (blu3mo) This is really fascinating! (blu3mo)
  • The examples mentioned in the Discussion on Immersive Virtual Spacetime Axis demonstrate the ambiguity that exists between time and space.