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Although the code has been modified several times to reflect changes in lighting technology and population increase , the 200l code is a marked change in approach . The ground floor has been altered . It raises questions of how settler-society Australia has , historically , brought drought upon itself , and how the concept of drought has been used to ‘ naturalise ’ the social . Unemployment has been internationalised , with capital migrating from one country to another in a perpetual search for cheaper supplies of labor .