“Because memory and feeling are so uncertain, so subjective, we always rely on some reality - let's call it an alternate reality - to prove events to be true. To what extent the facts we take to be true really are, and to what extent they are facts merely because we call them so, such a distinction cannot be made. Therefore, in order to recognize a reality as reality, we need another reality to relativize the former. But this second reality requires a third as a basis. An infinite chain is created in our consciousness, and maintaining it creates the impression that we exist. However, something may happen that breaks this chain and then we feel lost. What's real? Is reality on this side of the broken chain or on the other?”