Hundertwasser's comment on the work

It is definitely possible to have meadows and forests in the centre of the city, too, where there is little room - at superimposed levels. Why should only people live in superimposed storeys, when forests, meadows, parks and vegetable gardens can also be situated this way?A building of this kind only seems to be more expensive, for the savings in health care, heating fuel and air-conditioning are enormous, because the building produces much oxygen and promotes health. The upkeep of the roofs will be less costly, and the most important thing is that people will be happy, and happiness cannot be measured monetarily.In addition, there is the following advantage: should it later be possible to produce soil with humus toilets, this soil can be put on the roofs, i. e., once people's waste has been turned into soil, they will be able to use it on their own roofs and to a limited extent even produce food with it: an apple which grows on your own roof is ten times more valuable than one you buy. Moreover, sewage water can be purified by grass roofs by pumping the dirty water up there and having it trickle down in spiral form: by the time it comes back, it will already be pure.Grazing animals will be brought up to an upper storey by means of an elevator and will eat the grass there. The apartments hang like the gondolas of dirigibles underneath the meadows, and you can look through the window at the hanging forest underneath - the hanging houses of Babylon. But most important: the high-rise woodland house is a landmark for the reconciliation of man with nature.(from: Hundertwasser Architecture, Cologne, 1997, pp. 93-94)