The document discusses future trends in tourism based on analyses of modernity and postmodernity. It notes that modernity enables tourism through transportation and communication technologies but also causes alienation and a need for authentic experiences. Postmodern tourism trends include searching for subtle differences among familiar places, a blending of local and global influences ("g-localization"), and a merging of tourism, leisure, and consumerism in theme parks. Future trends include more conservation tourism, a mix of tourism and exploration to seek out remaining unexplored areas, and the possibility of space tourism becoming a mass market. However, space travel may limit adventure tourism due to the passive experience inside an "environmental bubble."