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Yeah blame welfare and not the decades of racism. Gee I wonder why nobody built anything of note in South Africa. Could it have been the all the sanctions ?
If the bill exceeds tax receipts then the end result will be a hit on the exchange rate(as the govt. prints money .. sorry, engages in quantitative easing). That affects imports, so the question is :- 'how reliant is South Africa on imports ? That will determine if this model is sustainable or not.