For all we know, ‘we’ (the particles that make up our mass) may be created/destroyed in an instant, over and over.
Which brings me to the question I’ve been itching to address: since speed is a function of distance and time, what if science discovers that Time is actually three variables, past —as in a linear function-, present -as in a planar function—, and future —as in a volumetric function? If we discover a way to create a temporal shift/disruption in the bond of ‘linear, planar, and volumetric time’ in front of a space craft (kind of on the order of a shock wave or cavitation for a submarine nose), would moving be still a function of distance and time spent covering that distance, or would distant points in space be in the present of the space craft and remain so while traversing the distance, like a photon does it?