Tragically, it would - and in the non-hypothetical world, probably does. There is a fair amount of research showing significant cognitive development improvemen

Tragically, it would - and in the non-hypothetical world, probably does. There is a fair amount of research showing significant cognitive development improvements when replacing dirt floors with concrete ones. http://web.stanford.edu/group/siepr/cgi-bin/siepr/?q=system/files/shared/pubs/papers/pdf/SCID367.pdf http://web.stanford.edu/group/siepr/cgi-bin/siepr/?q=system/...