This is simple linear thinking and a lack of imagination. As well as empirically wrong. Population expansion in humans ended because our culture adapted to the

This is simple linear thinking and a lack of imagination. As well as empirically wrong. Population expansion in humans ended because our culture adapted to the end of child mortality. Actually the massive expansion we saw and see was because culture took a few generations to do so. As soon as we conquer mortality as such our culture will shift again. And that is only thinking about the impact of tech we might see this century. Exponential growth is really a phenomenon of transitions. We are in a very rapid 10.000 year transition from biological system to cultural system. This transition accelerated further in the last two centuries. If we think about the end point of this transition it should be a system that is entirely defined by its culture rather than by its biology. Maybe even completely away from its biology. It's fun but idle to speculate what that culture will be like, but if experiences can be shared as easily as text today, what is the value of having billions of copies of similar experiences? What _is_ an individual in that situation? Even if we accept your simple expansion/competition/ressources based model of reality* (and I see no reason we should) maybe combining consciousnesses leads to much better results. Maybe expansion will look like ever increasing use of energy resources to enable larger consciousness rather than maintaining more animal bodies.