It's hopeless. We can still take the mathematical approach: any argument can be analyzed for logical self-consistency, and if it fails this basic test, reject

It's hopeless. We can still take the mathematical approach: any argument can be analyzed for logical self-consistency, and if it fails this basic test, reject it. Then we can take the evidentiary approach: if any argument that relies on physical real-word evidence is not supported by well-curated, transparent, verifiable data then it should also be rejected. Conclusion: finding reliable information online is a needle-in-a-haystack problem. This puts a premium on devising ways (eg a magnet for the needle) to filter the sewer for nuggets of gold.