The document discusses the myth of spectrum scarcity and argues that spectrum capacity is abundant with 90% of spectrum not in use at any given time and place. It advocates for more opportunistic and flexible access to unused spectrum through cognitive radios and hybrid networks that utilize both licensed carrier networks and unlicensed WiFi. Specifically, it recommends (1) allowing opportunistic access to unused TV white space spectrum through database lookup or sensing, (2) inventorying assigned versus actual spectrum usage to identify more opportunities for sharing, and (3) applying market incentives for license holders to open unused capacity for sharing.