He is a virtual reality pioneer in the areas of 3D virtual cities (Cyber City Berlin 1988), interactive avatars (Virtual Head 1996) and mobile interaction design (Live Interface (Since 2003)).

• 他是虚拟现实倡导者,内容包括3D虚拟城市(1988年柏林计算机城市),互动化身(1996年虚拟头像)及手机互动设计。