If everyone is thinking in the same way, you have a good result only if that one way is the correct way. If there are a variety of different ways, all of which appear good, they will produce varying proposals which can be considered for their direct practical consequences, and when the different methods come into conflict, all can be tested and potentially improved.
You might object that you have deduced the correct way of thinking, and therefore you do not need to be concerned with this. Two counter-arguments: 1) You are most likely overconfident, and the consequences of overconfidently removing all other methods of thinking are likely to be a catastrophic Black Swan when an unseen flaw hits you. 2) To the best of our knowledge, the objectively correct way of thinking is AIXI, which is literally unimplementable.
If everyone is thinking in the same way, you have a good result only if that one way is the correct way. If there are a variety of different ways, all of which appear good, they will produce varying proposals which can be considered for their direct practical consequences, and when the different methods come into conflict, all can be tested and potentially improved.
You might object that you have deduced the correct way of thinking, and therefore you do not need to be concerned with this. Two counter-arguments: 1) You are most likely overconfident, and the consequences of overconfidently removing all other methods of thinking are likely to be a catastrophic Black Swan when an unseen flaw hits you. 2) To the best of our knowledge, the objectively correct way of thinking is AIXI, which is literally unimplementable.