Can we know for sure that Quarks, Leptons and Gluons are Fundamental Particles?
Currently, we do believe that Quarks, Leptons and Gluons are indeed the Fundamental Particles, although we do not actually know they exist. Hang on a sec, so we don’t even know they exist? Scientists are fairly certain that they do, as their calculations depend on the existence of them, and give the right answers. Also, they are just so small, and are believed to have almost no mass, that it’s hard to think that they could have a substructure. But, when our technology advances, and we get more powerful equipment to view such tiny objects, and find ways to break them apart, maybe we will find that there are particles inside the Quarks, the Gluons or the Leptons. That’s the thing about a theory or a model. They’re almost never complete. There will always be another aspect to add on, or a new discovery to take into account.
