[Source] It was called the “British Invasion” . The ’60s began a time of “question authority”, grow your hair long, hippies and flower power and morphed in with the Anti War gang of “hell no we won’t go!”
All by design, all by planning to mind control and manipulate what the Baby Boomer (Doomer) generation thought, the language and slang used and the behavior control of the masses.
Yes, it is interesting to note that the Tavistock Institute of Human Relation, as well as, it’s child organization: The Stanford Research Institute, developed The Grateful Dead, among other things. You can see that Alan Trist, a social engineer for the Tavistock Institute, became the shadow manager of the Dead. His father, Eric Trist, was one of the principal founding members of Tavistock.
It was part of the development of a dynamic psychological warfare model to be used on foreign and domestic populations, modeled, ultimately, on the Lord Gordon Riots in London and the Jacobin Terror of the French Revolution. The purpose was to mobilize mobs in ideological opposition to the state, as a mass destabilization operation.