> Mining Bitcoins is like Iceland smelting aluminum? It can be argued that producing new aluminum with cheap power is also kind of a sink. There is plenty of a

> Mining Bitcoins is like Iceland smelting aluminum? It can be argued that producing new aluminum with cheap power is also kind of a sink. There is plenty of aluminum that has already been produced, if we keep producing new cheap aluminum we are in fact incentivizing using aluminum for cheap single use products and decentivizing recycling. A lot of this new cheap aluminum will end up in landfills, hence the sink.