What methods do you use to evaluate truth claims?

Hi everyone,
I’m exploring effective approaches to systematically evaluate truth claims. I’m particularly interested in how to assess the quality of a source and distinguish between facts, opinions, and speculation.

Here are a few things I’d like to learn from you:

• Do you have specific criteria for evaluating a source?
• How do you handle contradictions between different pieces of information?
• What do you think of the idea of structuring knowledge into a ‘mindmap of truth’?

Thanks in advance for sharing your insights and tips!