Quite apart from all these aspects, which to the mind of Philippe Nigro are often indissociable, his creative approach to the feet of the model T.U. (Table Universelle, or ‘universal table’) also questions the relationship between design and the environment. In the case of his Confluences seating, one remembers that this is a detailed study of the customs and lifestyles which led to a real revolution in terms of forms. In the case of the T.U. table, leaving aside the requirements for personalisation and dimensional adaptability which are more or less universal, its functional and aesthetic innovativeness is the fruit of comprehensive environmental reflection: the very quality of the base enables the user to ‘recycle’ any kind of top which he or she may already possess, such as a top formerly belonging to old trestles, a reclaimed slab, an old door panel…and if the acquirer of a T.U. table should choose one of the tops offered by Ligne Roset, they will ultimately be able, should it become damaged or simply fall out of favour, to replace it easily with any other Ligne Roset top, or with a top from anywhere else.