A difficulty I face is when I think of space. I haven't studied GR or SR yet, but I really want to know what it is. What is space? Is it just the empty place where things are in reality, or something else?
Another question: While reading about forces at a distance, like gravitational force, magnetic force, electric force etc, I got a really good statement which explained why non-contact forces exist. The statement was: Non-contact forces exist because some particles tend to change the space around them, for instance, a charged particle changes the space around it, and it can be felt by another charge particle, which leads to their attraction or repulsion. Now, my question is this: If I am right saying that space is just the empty place where things are present in reality, shouldn't the change in space be experienced by every object? For example: Suppose an electric charge changes the space around it(I don't know what happens, just a guess), and it leads to another opposite charge being attracted to it. Now, shouldn't every object be attracted or repulsed, as space is the same for every object, charged or not, isn't it? So why these forces are limited to specific particles only?
NOTE: I am not a physics specialist, I am just a student, and like to study it. If these questions are stupid, please forgive me.