“In March 2007, Microsoft Research organised the ‘HCI 2020’ meeting at the El Bulli Hacienda Hotel near Seville, Spain. The event’s title expressed its key question: what will Human- Computer Interaction (HCI) be like in the year 2020? That question is important because HCI, significant as it was in the late 20th century, has a pivotal part to play in the 21st, when computers will become so pervasive that how humans interact with them will be a crucial issue for society. HCI 2020 produced many ideas, both thrilling and troubling. This report is not a conventional publication of an academic conference but seeks to convey the passion of those ideas, both for the general reader and the HCI practitioner. For the general reader, this is important because knowledge of what the future might be may empower, while ignorance harm. For the HCI practitioner, its purpose is to map out the terrain and suggest new approaches while keeping an eye on the main prize: the embodiment of human values at the heart of computing.” (Microsoft Research) – courtesy of markvanderbeeken