Disassociative logic is the state of believing two antithetical premises at once. Internally, it is experienced as having two incompatible truth tables in conceptual memory, creating a logical inconsistency or impasse. We believe in a thing as true because unless it were true other things would be untrue that we believe to be true. Thus our minds consist of truth tables which can require drastic revision if there is even a single error. To an extent, we accord a belief system that seems to have consistency a legitimacy all its own. However our mental energy also seems to play a role: scientists are finding that mental functions have limited energy per "burst" of activity. Once a burst's energy is expended, whatever arguments are resolved during the session are accepted as fact. We then refer back to these with our Ti function in various capacities. Particularly when a truth table seems to indicate something negative about ourselves -- especially something we feel we cannot change -- there is a tendency to give our emotions priority and tolerate the existence of false beliefs as indicated by our truth table. This is the beginning of self-delusion, for good or ill.