Why does history repeat itself?

Some people see that history always repeats itself and I do agree with this point to some degree. When we only focus on history from the politics aspect, it seems that the power struggles throughout our history have many similarities. I think that this is because political struggles are always about winning the majority support. During different time periods, the politicians including kings fight for majority support from different sources. In the earlier period, the politicians particularly fought to win the support from noblemen; later, the politicians are fighting for a wider range of citizens in their communities. Overall, their goal never changes.

Since they always have the same, then their actions become much likely to be predictable. It is fair to assume all these politicians want to win and they are clever (I think they have to be clever to play such significant roles in our history), then they should always play the best strategies. To achieve the same goal, the game theory tells us that there are some dominating strategies. If dominating strategies are pure strategies, then we will see exact outcomes every time. If dominating strategies are mixed strategies, then we will see several outcomes repeatedly happen.

Overall, the reason for us to see history repeating itself is because the people playing significant roles in our history do have the same goal which is to win the majority support, to achieve this goal, they have to follow similar dominating strategies.