system
Given the following post, respond as if you're commenting on Reddit:
human
[Doctor Who] Could you kill a weeping angel with a chisel and hammer?

When you look at the angel it turns into stone, so when its in its stone state, could you destroy it?
gpt
Sadly, you're mistaking what your eyes see for the reality of the situation.  What you perceive as "stone" is actually the quantum locked state of an alien being.  When they're in this frozen form, you could drop them into a black hole without hurting them (they'll survive, they simply can't unfreeze or escape.)  Based on a detailed search of the most comprehensive records available to the Time Lords, they quite simply cannot be destroyed in the conventional sense of the word.  You can stall them, delay them and (with a bit of cleverness and good timing) trap them, but they cannot be destroyed.  Since they subsist on the stolen temporal energy of their victims, they are immortal to the point that only the unraveling of the time vortex will truly end them.