Any information humanity has ever preserved in any format is worthless

It's like this person only just discovered science, lol. Has this person never realized that bias is a thing? There's a reason we learn to cite our sources, because people need the context of what bias is being shown. Entire civilizations have been erased by people who conquered them, do you really think they didn't re-write the history of who these people are? Has this person never followed scientific advancement, where people test and validate that results can be reproduced?

Humans are absolutely gonna human. The author is right to realize that a single source holds a lot less factual accuracy than many sources, but it's catastrophizing to call it worthless and it ignores how additional information can add to or detract from a particular claim- so long as we examine the biases present in the creation of said information resources.