There is no guarantee to the progress of knowledge. Dark ages are as common as a

There is no guarantee to the progress of knowledge. Dark ages are as common as are enlightenment. The greeks lost literacy for what 600 years, and their knowledge of history with it? The greeks had just about started the industrial revolution by the first century and we spent almost two thousand more years before the west again discoverd it. The plagues and islamic conquest more so than the germanic invasions caused the fall of roman empire and while civilization progressed in the dark ages, the spread of mysticism and ignorance followed the prior spread of law, commerce and literacy. Greek knowledge (truth) was invented only once in all of human history and if not for the enlightenment rediscovery and the printing press it might not have returned to us. Yet with it, in 500 years we dragged humanity kicking and screaming out of disease, poverty, and ignorance.

Yet in the past century and a half we have seen a second attempt to impose pseudoscience instead of mysticism for the purpose of deception: Marx, Freud, Boaz, Cantor, Keynes, Mises, Rothbard.

Science again attempts to save us from pseudoscientific mysticism just like it saved us from religious mysticism.

But the opposition, having failed with pseudoscience, has merely imported new hosts for their lies in vast numbers by incentivizing us with hyperconsumption.

No, knowlege is often lost, and dark ages common in history. Many more civilizations have died than those that survive today.