 Second, a familiar feasibility worry is that basic income schemes might be unaffordable. In facilitating a move away from paid productive activities, basic income risks undermining the very source of funding on which it depends. Again, a number of responses are available, including: claiming that perverse labour supply effects might be reduced by taxing things other than individual income (natural resources, financial transactions, consumption, and so on); or stressing that the weight of this objection depends on the level at which the basic income is set (uncertainty perhaps recommending that we start low and introduce increases experimentally).