Yes, 1 means solo, yet nothing is solo and independent of everything else. Using some examples of the things you cited above, where does one dog end and the other begin? Where does the apple end and the tree begin, and the tree end and the dirt begin? They are all connected. They are all just part of everything. You could call everything "1," but that would be close to the beginning of a religion, which, IMO, is just another attempt, like science, to explain things by putting them in some other perspective, and is also just another delusion. All is chaos. There is no such thing as 1, or other integers, or math, or logic, or straight lines, or the passage of time. These are all just delusional products of our human intellect. They have proved very useful in helping us survive, but they are delusions.