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" These sentiments bespeak Arnold 's theoretical mastery over those elements in his artistic consciousness which had previously made for alienation . An opposite instance-an instance of the broad difference made between the barbarian conquerors and those who had once enjoyed the privilege and now endured the disadvantage of Roman citizenship-is as follows . Research in this area is concerned with the ways that different societies across time and space make provisions against social risks and the relationship between social , economic and political changes and policy development . I shall make a few comments on the relevance of computersto all these areas before going on to a more detailed analysis of the relevance of computers to AIand cognitive science . During my career , I have had this responsibility several times , most directly as Vice President of Engineering where I controlled the budget , reviewed candidate technology projects , and personally made the decision on which projects would continue and which would never see the light of day .