Instead of trying to convince, try to understand. Do they know more/different details that make their conclusion fit? Did they already try "your" approach and

Instead of trying to convince, try to understand. Do they know more/different details that make their conclusion fit? Did they already try "your" approach and it didn't work for their situation? Is that their real point/position or is it something else and this is how it's manifesting? You may end up in the exact same place and want to argue but now you understand how they came to the conclusion. But since you worked to understand first, the person is more likely to listen anyway. You may realize that you were wrong because you missed a key fact that they can share with you. Thank them and you're both better off. But more commonly, you'll realize that MUCH of life doesn't have a clear yes/no and is a tradeoff based on preferences, priorities, abilities, resources, schedule, etc, etc. There are absolutes in the universe but most of the time, that's not what the conversation is about.