Could it be possible that technically, nothing exists?
We know, matter is mostly empty space. Atoms are mostly empty space. Protons and neutrons are mostly empty space as the quarks are much smaller. A quark is made of a 1 dimensional string, which takes up no space at all. So the string vibrates to change the properties of spacetime around it, giving the illusion that there is something that actually takes up this space. So technically, everything is 100% empty space, not just "mostly". Thus, no 3-dimensional object exists in the universe.
lol, Y!A suggested this be posted in philosophy...
@billruss umm... yes, it is science. Last time I checked, philosophy doesn't deal with quarks.
- ?Lv 79 years agoFavorite Answer
but then again - what is existence ?
To others their perception of your existence is as a solid 3 dimensional object, but as you say 99.999% of "you" is actually empty space, even if you regard protons etc as being 3 dimensional solid things.
So even others perception of your existence aint correct.
If the particles aint solid then as you say the body (and any other "object") becomes 100% space. with loads of vibrating "energy" strings in it.
So that would mean that there is no difference between "you" and the vacuum of space except loads of vibrating strings.
You could say that peoples "common sense" as to what constitutes physical "existence" is nonsense in reality
(and string theory DONT tell us there are loads of dimensions. the "loads of dimensions" have been "created" in order for the maths of string theory to hold water. Some variants require 11 dimensions others require more dimensions for the maths to work)
Think you have it in the right place - you are not taking about philosophy but the actual physical properties of existence.
- Anonymous9 years ago
Actually, just because there are objects that are of 1 dimension (or even dimensionless), they have to be placed at some coordinates. These coordinates, from a macroscopic point of view, are in three dimensions (although string theory tells us there are many more dimensions than that).
For instance, you might have a line L = (1, 0, 0) + t * (0, 1, 0), which is moving in the y direction, but starts at coordinates (1, 0, 0).
In addition to that, even though atoms are mostly empty space, the presence of the fermions and forces inside the atom itself allows it to behave as some sort of (nearly) indivisible particle. Hence, matter exists in this way.