Prof. Peter M.A. Sloot Universiteit van Amsterdam The Limits of Computing In a series of recent papers Seth Lloyd and others looked into ultimate limits of computer speed, information processing and information storage. With all the work and discussions going on in grid computing I feel it is time to just look into such fundamental limits, limits that we will never reach... In this lecture I will give my own view on the answer to 'life the universe and everything' (Quote from D. Adams). I will use basic physics and information theory to derive the limits and explore the usefulness (there is none :-)). This lecture will give you a lot of large numbers to ponder on when considering the next extentions of the Grid.