It is easy to forget that in 2009 even MapReduce was still considered exotic. Particularly back then, this was far in front of what most people were thinking about.<p>The only people at the time that immediately grokked the broad implications and had a deep interest in the theory behind it were computer science researchers at certain government agencies. Hence why so much of the early computer science was verified on supercomputers instead of commodity clusters. Unlike today, you could not rent a cluster for this type of thing back then.<p>None of the early research produced public results.