09-28-2014, 07:38 AM
Neil Gaiman (writer for the series) came up with a possible explanation - that the regen limit is like the speed limit. It's not impossible to break it but it was enforced by the other Time Lords and therefore going over 12 regens would simply have big consequences.
http://www.doctorwhotv.co.uk/gaiman-talk...-52305.htm
That's not canon though, as he says.
http://www.doctorwhotv.co.uk/gaiman-talk...-52305.htm
That's not canon though, as he says.