It struck me that when sam first enters the grid and gives us our only real look upwards from one of the city's lower levels, that what he could be seeing is an upside down level of the city, attached to the underside of the next level up. Why not? It would be an efficient use of space, and we know reverse gravity is possible from the disc wars and ls battles. It would double the useable surface area for buildings.order abortion pill http://unclejohnsprojects.com/template/default.aspx?morning-after-pill-price where to buy abortion pill