While Michael entered into the dungeon, the world outside was going through changes which could be only described as… Phenomenal.
Just like Michael guessed, the Zombies were evolving and just like he believed, Humans too were evolving. Just within the few days of the Apocalypse started, all the survivors understood that the times are changing.
They did not need a notice or a warning to understand that only the strong will survive in this new evolving world. The fact that weapons that they possess can do little damage to them, was a fact they were slowly understanding.
What was left was only to develop their physical power… or was it all there was to it? Nope. Not at all. In fact there was a critical piece of information which Michael did not know about.
While Evolution did make people much stronger than they would normally be capable of, there was something that Evolution brought to the Humans along with physical enhancement.
That is a 'Gift'