To study a particle, observers must influence it or everything else if they know what all there is. Gravity in a 'perfectly isolated system', or 'virtual and incomplete system' acts as the metaphorical twin pots of gold at the ends of the photonic rainbow, hinting at a treasure of understanding with Riemannian manifold utilization. The duality lies in the measure, influenced by all forms of gravitational warp; studying the limits of the observable universe will always prompt the question of what was overlooked. We fill the gaps between minutiae with terms that best fit the space until we find a way to define the blurred edges, for nuance has no limit.
(X, Y, Z) is the beauty of 3D distance at a specific time. To actually zero the scale, the universe would have to freeze for the photo of the system in question. We model with spin the winding XYZ shown in galactic models, all interconnected through the same interspace of motion. That is the fun in estimation; attempting to include enough directional vectors to achieve the best zero.
Imagine a point of seemly empty space of unmeasurably significant mass. Vectors trace Riemann curvature of lapping gravitational waves at least temporarily in a mini stasis waiting to adhere into a complete particle. Read Projection; Geometry For More Details =>