The Platonic Ideal thing is interesting but the sheer non-spiritual truth is the exact opposite of the theory. Whenever an entity is perceived by something, a subjective image of it is created within the perceiver's mind. Furthermore, that image isn't static, but morphs as the perceiver is shaped by its experiences, creating even more versions of it. Ideas and ideals probably outnumber the amount of actual entities by trillions at the very least, even if you also count the different versions of the object as it is changed by the world from its creation to its destruction. Though I suppose if you take this to its extreme amounts become as meaningless as dots on a line, but even then the amount of lines are probably more plentiful on the idea side than the physical side.
If I were smarter I'd move this stream of thought further into whatever the equivalent of the third dimension would be, but I've probably wasted more time writing this than the total added amount of time people will waste reading it so that's okay.
Completely unrelated tidbit: Missing your daily intake of SNRI-class meds twice in a row does weird things to your mental processes (and gives you the runny shits).