Just passed the part where you were talking about distance in love. I really do have to wonder how much difference a little change could make. Take people with only one parent vs two. When you are a kid just at that point you have half the love (think more like connection) to the world than someone with two, ignoring all outside factors. How much does that less connectedness have a chance to grow as one becomes an adult. Could it grow on average enough to make our world, say, 33% less connected and caring that it could be otherwise?  How much could an extra 33% love for your fellow human on average throughout the network create a tighter nit community? How could this effect the ties between communities, the ties between geographic areas, the ties between nations? As a poor example, If one in 10 more Germans had someone they loved in France, would they have been as ready to Blitz at the start of WW2? (chances are yes but you may get the point) If one in 10 people had someone they cared for experience homelessness, how would that change our world? I don't know but i have to imagine that a good % of the homeless are among the least connected people in our society.