Space seems to expand in the absence of anything, and mass and its agent gravity appear to counteract that natural expansion of distance. If this is in fact tru

Space seems to expand in the absence of anything, and mass and its agent gravity appear to counteract that natural expansion of distance. If this is in fact true, I don’t think it’s astronomically hard but impossible to directly manipulate space. Space isn’t actually a thing to be manipulated, it’s a description of the apparent distance between things of reference. The discussion of space warping around mass etc is a convenient metaphor for what we observe, the bowling ball on a blanket doesn’t mean there’s literally a blanket to be manipulated. It’s an effect we observe about relative distances being distorted in the metrics of distance and rate of information propagation. What medium these exist in, if any, is entirely unknown and is most likely non existent but is a description of observed effects, while space and time are simply descriptions of those effects.