Oftentimes when we think of changes we look to the realm of the external. That's because the facility of cognitive memory naturally serves to identify the environment of consciousness's potentials relative to specific survival threats, and/or specific empowerment enhancing allies that serve to perpetuate it's community member's ongoing specific existence. In the realm of survival, philosophy and introspection are not key. Rather what is, are the externally identifiable survival threat predations, and numerically potential physical pitfalls, that most efficiently effect specific demise. This is the memory's key function with respect to cognitive necessity. Even at this time, in the bigger picture of our specie's evolutionary change, we are merely a few steps outside the cave's shelter from whence we've barely emerged.