Sequential decisions are solved by working backwards from the end

The most effective way to navigate complex, multi-stage choices is to start at the final outcome and reason toward the present. In game theory, this process is known as backward induction. It forces a decision maker to consider how others will react at the very last step, which then dictates the optimal move in the second to last step, and so on, until the current choice becomes clear.

Most people fail in strategic games because they focus on their immediate move without a concrete plan for the endgame. Backward induction eliminates the "fog of war" in sequential interactions by identifying subgame perfect equilibria. By assuming all players will act in their own best interest at each future junction, you can anticipate the final result of any decision path today.

This concept is essential for negotiation and long term projects. If you know the final round of a deal will likely fall apart under certain conditions, you must alter your very first offer to avoid that path entirely. Rationality requires looking forward but reasoning backward.