Some contemporaries - non-moderns, who are thus post-moderns - tell us about their own obvious logic, and not about Reason (which too often gives way when one stops watching it). Matter does not conform with the physicists' great schemes and disobeys their orders. What about planning then? The town of Curitiba is managed like a compost heap. We know that the great manoeuvres of our economic (and cultural) mercenaries towards the poor and the distant, towards the Third and Fourth Worlds, require a complicity with offensive mechanization, which, if left unbridled, appears more and more unbearable, unfair and self-destructive. We must give priority to eco-sociology. Let's not talk about architecture, which lends us to manufacture, artifice and separation. Let's talk about process, and therefore about landscape. A landscape builds itself up, using its personal and communal energy (phytosociology), and without any creator's direction. A landscape is a living entity (therefore representing more than the sum of its components). It slowly establishes its balance (which is always temporary) through disturbances, in which it answers rationally all the motives of its own creation, even those of the lowest energy. Sometimes a piece of architecture can become a landscape. Who is rational?