I am concerned that what purports to be a tax reform is actually the old tired ideas dished up in a fancy way. A tax on the results of labor whether in terms of what you earn or what you spend is a tax that slows down the need for consumer goods and consequently the need to produce goods. In other words it causes a slow down in the amout of progress possible. The only tax that is able to incite the production process and to help the society to grow is one that is applied to land values and which would encourage the land-owners to make proper use of this national asset or alternatively they will need to sell their land to somebody else who will make better use of it without holding on to it for purposes of speculation in its value. May we expect to see how any of these proposals work in practice by testing them on a simulation model of the macroeconomy? This is the proof of the inovation, but it is vital that the model is fully comprehensive to include the effects of land speculation!