1.
Imagine you are in a reality in which there are no objects. Even you do not exist as an object. Of course, this is impossible. But it is possible to imagine. We have the ability to do this somehow.

Imagine now that you are moving through this reality. But how would you know you are moving? You would have no reference points.

Perhaps you are body, the only body in the reality, like a perfect unchanging sphere. Your spinning and turning would not give you reference points. And if say you are not a perfect sphere but you are unchanging then you still would not have reference points. No amount of rotation will tell you which direction you are facing or where you have moved to.

So let us say you are now you are an irregularly shaped object and you are now flexible. Your changing shape has now given you distance and duration. With this you have an understanding of space and time.

What is required of reality are objects, space and time. But space and time can never be observed directly. Space and time are only inferred from the relationships of objects and the change of the relationship of objects in inferred space, respectively.

2.
Objects mark positions in space and in time.

A position in space is never simultaneously (at the same time) be occupied by two objects . Nor is it occupied by an object or space at once. I can only guess that a position is not occupied by two spaces at once.

What I can say is, a position is either object or space.

So space must be a special kind of object.

3.
Time is sequential and equal.

An object moving with reference to another object shows this.

4.
There are no objects without there being space and time. Thingsspacetime is the fundamental characteristic of reality. This is the reality we exist in. This is the reality we should worry about.