Excerpt from James Watson’s Nobel Prize lecture called The involvement of RNA in the synthesis of proteins: Source, page 2 I would like to know the nature of these forces, what means “long-range forces arising from quantum mechanical resonance interactions”? As far as I know there are 4 types of fundamental interactions in physics: 1. Strong 2. Electromagnetic 3. Weak 4. Gravitation And that hypothetical force was (more precisely some physicists thought that it was) the part of one of these fundamental interactions or how? Or maybe it was something absolutely new understanding/idea in physics? Can such force exist in nature (perhaps not in living cell), at least in theory?