What if I were to mention that without humanity or a similar species capable of self-awareness, there IS no wheel?
Sure an object turning on an axis does exist physically, but without us it is not a wheel, it is merely an object turning on an axis. In the same style of the cliche argument about a tree falling in a forest with no one to hear it, I can also say that without humanity to have the concept of a wheel, is there actually a wheel?
The componants for the wheel exist before the wheel, but the idea of the wheel does not exist before us.
The universe and it's physical reality sit beside our own mental universes, to deny this is to deny humanity.
It's all about perceptions.