We don't now and never have seemed to exist in a simple Newtonian world. We live in an obviously Quantum World. Newtonian physics accommodated itself to this by accepting as "given" the quantized properties of elements and their compounds, such as water. Why should water be? This was a question that was "unasked" along with many others, in the preQuantum dark ages.
Ah, but if only Physicists were truly open minded to the different. They would discover that their conceptualization of dimension Time, taken now as an invariant given background in which things happen/exist, is far more vector-like, and then they would discover what Haisch, Rueda, et al have uncovered regarding inertia and gravity, with the added note that it is the vector nature of time as it first manifested that causes inertia and gravity.