Cosmos: big data and big challenges.
Pat Helland talked about massively parallel processing based on Dryad using a Petabyte store and made the point that these massive systems process information differently. Database processing in this environment involves tools like SCOPE, which is an SQL-like language that has been optimized for execution over Dryad. Saving this data long term is a problem because they are worried about bit rot. Cosmos keeps at least three copies of the data, checks them regularly, and replaces data that is damaged. Interesting how close this is to LOCKSS (which saves 7 copies).
In talking about how faster processing is not always the solution to processing problems, a speaker quoted Henry Ford as saying: “If I had asked my customers what they wanted, they would have said faster horses... “ (source: Eric Haseltine Long Fuse and Big Bang.)
NUI (Natural User Interfaces)