"What I cannot create, I do not understand" - written on the blackboard of Richard Feynman at the time of his death.
We are a group which meets recreationally to re-create and understand the quantum theory from first principles. A prior knowledge of quantum mechanics is not necessary, but helpful. What is required, however, is a keen desire to learn - with the help of like-minded people - how Nature really operates on the fundamental, microscopic level. Oh...also, an ability to have fun doing so!