Thoughts on space and time.

[zenmaster]

The concept of Unity.

How?

There is only one of us here.

As in identification of the mechanism or action of principle behind the claim not an appeal to infinities (which is a waste of experience).

So why did we decide to call this a Universe?

That is orthogonal to the question, but you coyly chose it because it is a concept of unity and in continuing the appeal to infinities any concept of unity can be a finger pointer to infinity. Used in such a way, it's really an abuse of the intuition. As Ra said, the function of intuition is to inform intelligence. And the unbridled predominance of intuition will tend to keep an entity from the greater polarizations due to the vagaries of intuitive perception.