To limit the probability that heating and cooling energy will be used to reach new temperature set-points rather than letting the natural movement (infiltration and exfiltration) of ambient air heat or cool the space to the desired temperature, which could lead to the operation of heating and cooling at the same time for long periods, which could lead to unnecessary consumption of energy for heating and cooling, which could lead to excessive use of energy, which could lead to an unacceptable effect on the environment.