hiding gravitational anomalys caused by ships just depends on the level of artificial gravitation technology you have.
which can be prevented/masked by adapting the shield sistem in different ways.
for instance simple acceleration ship based sistems give themselves away by generating a radiation signature everytime the ship hits interstellar dust.
yeah. what FTL sistem are you using for interstellar travel? I could possibly suggest some improvements to lower the ability of other civilizations to spot them.
the zolypian are meant to make any major invasion impractical, as if too much forces are in one place it would be very easy to spot them
i mean, the utter vastness in galaxies is both a pro and a con here
and wanted to explain that your claim is actually a rather reasonable one,which many people would say it's not without observing all facts beforehand.
I only said all that because I know that many people like to disagree with you a lot 7shotsolo.
Well, we have large nomadic ships, we blast dark energy, and detect the distortions caused by objects. We then use calculations, to find the shape of the ships