You must trust the "science"
This is a laughable example of fake, sloppy garbage attempting to pass as science from 50 years ago, not much different than all the other fake science we see used as a basis to lock down the world and scare the sh-t out of everyone to accept a poison "vaccine" to save their lives.
And it's still used today by the same globalist fascists who want to rule the world.
Always excellent, watch James Corbett:
https://www.bitchute.com/video/pCJOTlxyUzw/
.