### 4.SPACE, AND PROPAGATION IN THE UNIVERSE OF DECISIONS

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In the coordinates system that we've defined, space is a variation between the number of decisions each i particle has made.
The issue is: what is there between the positions occupied by those particles? In the ordinary language that would be the vacuum, but in our Universe of Decisions the vacuum has an obvious definition.

It is enough to think of & as a feature of i particles and not a feature of the energy to define that the vacuum are all the points in our coordinate axis where:
&=0.
However, the existence of @ for each type of decisions is a basic feature of our Universe. That's the reason why all the space is quantified in Decisions Units. There's nothing between making a decision or not making it.
Indeed, without decisions there's no space, or time. There's nothing. Not even the vacuum.

A stimulus from i goes to i', that is from a quantified position in our coordinate axis to other one, at a speed 1/@, as long as the places between i and i' don't contain other i" units. In that case, along all the way between i and i', we'll find that &=0. If along the way from i to i' there's any i" unit, when crossing that position the speed will be slower, since:

And the maximum possible speed will be:

To be accurate, we shouldn't talk about the propagation speed of a stimulus, instead we should talk about the speed at which the a, b, c decisions follow in any point of our coordinate axis.

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