Does 'If they have overestimated how far the CPI is off, Boskin and his commission may institutionalize an underestimated CPI--guaranteeing a yearly, stealth tax increase.' provide a contradiction to the established premise 'There is no chance they have overestimated how far the CPI is off. '
If they have overestimated how far the CPI is off, Boskin and his commission may institutionalize an underestimated CPI--guaranteeing a yearly, stealth tax increase.###There is no chance they have overestimated how far the CPI is off. 