The future of tourism and communication technology are intertwined. As Toffler observed with other revolutionary change, an inter-relationship will be difficult to predict but rewards will be substantial to those who are ahead of the curve. Two critical forces will continue to collide: increased democratization of tourism and increased focus on sustainable use of resources. The growth in incomes and the expansion of low-cost air service make China, India, and a few other developing countries the most rapidly growing tourism markets. This is particularly the case in parts of the Islamic world, resulting in rapidly expanding numbers of Muslims who seek to undertake the Haj. As detailed in a case study, this has resulted in demolition of much of ancient Mecca to make way for tourist hotels, a case where it appears the Saudi government is more interested in offsetting declining oil revenues with tourism revenues than with preservation of a unique tourism asset. Elsewhere the threat of over-tourism is evident in many places. In Europe, this is most evident in Venice where as tourism has expanded, the prices charged for overnight accommodations have shot up, forcing long-term residents to move out of the city and to endure commutes to their places of work back in the city. Local government has a choice – see the asset degrade or limit tourism. The market is well suited to limit tourism, but if the government imposes fees, say a day pass to enter the city, is this an equitable option (i.e., potentially making the city available only to wealthy visitors)? The nation of Bhutan has already imposed a high fee for visitors as a method to maintain the nation's happiness index. The future of tourism is uncertain as is the impact that technology change and concern regarding sustainability.