“Precommitment is a strategy where you intentionally take actions which limit your future options, in order to enforce your commitment to a particular course of action and make your threats appear more credible to others.
For example, an advancing army might precommit to an attack by destroying any bridges that would allow them to retreat, as soon as they cross them. In this case, the use of precommitment has two main benefits:
It motivates the troops of the invading army, because they know that retreat is not a viable option for them, which means that the only option that is left is to keep moving forward.
It demotivates the defending army, because it shows them that the invaders are fully committed to the attack, which means that the invaders are unlikely to give up, no matter what happens.
The concept of precommitment plays a role not only in game theory but also in a psychological context, where it refers to people’s decision to precommit to a future course of action as a way to overcome their impulsivity and encourage themself to follow through on their long-term goals.”