If you have Precognition toggled on, but run below the Psi point count needed to activate it, you are unable to toggle it off unless combat ends or you regain enough psi points that you are again over the activation threshold. For example, my character right now spends 22 psi per turn to maintain Precognition -- if he is below 22 psi at all during combat, I cannot turn off Precognition, and ending his turn causes his psi to go to his natural regen value of 16, where it indefinitely stays until his reserves run out, combat ends, or I use a booster and turn Precognition off manually. Game version 1.2.0.12.
