@GigglingZombie We have played quite a while now and are on our 2nd playtrough day 41. We have 5 forges running 24/7, chemstations, campfires and torches. And no defense what so ever. No turrets, no spikes, no glitchy blocks like the ramp 0.6, just a single layer cobblestone wall, not even concrete. Never even once something was damaged while we were away.
Chunks you can´t see aren´t loaded. They basically don´t exist if you can´t see them, otherwise even supercomputers couldn´t run this game. There is something else going on.