This new inescapable prison would use mechanisms that would completely make all hallways unusable and blocked thus breaking the wall would be the only possible way to escape wall thickness is 30 blocks. 15 to main cell and 15 to outer shell in addition of mining fatigue 3 and redstone regen wall in the core prison. although it doesn't use water. it also has 60 blocks gap between the main cell and the outer shell. chorus fruit doesn't work here. due to its size. teleporting to different rooms would be is useless due to wall thickness. in its current design it's overall wall thickness due to wall thickness.. combat things won't be placed inside the prison. it would be outside and heavily defended to prevent prisoners sneaking in it and use the combat stuffs in there. its still being currently built and im working on entrance mechanisms. which is still visible.. (uppermost hole is the entrance and lower one is visiting mechanism). there is a thick glass in it and if it is broken and an escape attempt occured. there will be tnt dupers above that would destroy the lower flying machine disabling the capability to go the outer shell and automatically closing the main cell hallways. and the guard would have enough time to close all unclosed hallways in the outer shell which would trigger the prison lockdown defense and thats where the only possible way to escape is to break all the blocks. if they want to build a bridge they would need to break all the redstones in it and craft a block. there wont be enough redstones to reach the other side. also it would be time consuming.