Effecting control at a molecular level would perhaps be the domain of select few. But the implications would be a ‘mass’ly commercial. From targeted medicine designed to affect only the diseased cell or say reworking the base structure of materials to make them stronger than steel but lighter than aluminium or think about wearing your iphone on your body like a band. Ideas that, some would perhaps think, came straight from a scene in Star Trek. Unbelievable. But in the near future could be a sure reality. Some already are, like technology that blocks air molecules from escaping golf balls and tyres, thus increasing life span. Imagine the savings. Small is definitely the next big. The story of nanotech is definitely old but the book is a good read for those wanting to be excited with new ideas. Ignore the personality critiques though.