On the pushback. It is easy to understand. A LOT of people have invested A LOT of their life into learning something. And now somebody comes and basically says

On the pushback. It is easy to understand. A LOT of people have invested A LOT of their life into learning something. And now somebody comes and basically says "the thing you were doing is worthless now". And assuming most people identify with what they do, what they are also hearing is "you are worthless now". There is for example a new theory that the cancer is not, in fact, a genetic disease. That it is actually a metabolic dysfunction of certain cells and the genetic abnormalities are A CONSEQUENCE of the metabolic dysfunction (driven by huge increase in free radicals). Here more information: https://www.youtube.com/watch?v=KusaU2taxow https://www.youtube.com/watch?v=KusaU2taxow But a huge number of people have devoted their entire lives to fighting cancer based on assumption that it is a genetic disease. And when you come with a proposition like that, almost all people become deaf to your arguments and the only thing they hear is danger to your identity.