Quote:
Originally Posted by hcap
Question: What happens if your house gets demolished ? Does the space within it's walls magically disappear, and cease to be? If a quantity of hydrogen gas gets stripped of all it's electrons leaving only protons which then repel each other. Does the space delineated by the distance between where the electrons were and their captivating proton vanish? Can one point in space ( one proton ) define a space surrounding it, or must there be more points to delineate a volume or distance in space? If the proton is 1 light year away from another proton as might be in interstellar space, and the second proton is struck by a cosmic ray and decays, what happens to the 1 light year of space that existed between the first and second proton?
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If the house is demolished and there is nothing left, then no one would ever know that a house existed there. In the same way...if all the celestial bodies in the universe were "demolished" or were to "magically disappear", you would never know that Space was the "fence" or "border" around a physical universe. In fact, sir, you would not know that there is such thing as "Space" since only physical matter can reveal Space to us.
In case this is too deep for your...
, consider a large, empty one-room house. Very large. Very empty. Because there is nothing in the room, we cannot know what kind of room it is. We cannot know the purpose for such a room. Is the room going to be a very large kitchen? A large banquet hall? A ballroom? A general recreation room? A very large studio-style dwelling? What? We need certain kinds of physical objects in the room to reveal what the empty room (space) is all about. Likewise, we need physical objects floating around in that big room above and around us to tell us that we're in a room in the first place.
