Board Thread:False Info and Speculative Discussion/@comment-27411820-20160204004113/@comment-4091815-20160205194229

Blake2014 wrote:

All of that is purely speculation. And you are stating it as a fact. Seriously, if you don't want other people to do it, don't do it yourself. We have been given no canonical information to what you just speculated.

Actually, the speculation bit begins with "it could" the rest, the fact that the doorways and walls are mountain ash and each cell is reinforced with it, was stated clearly on the show.