Quixotic.
adjectiveexceedingly idealistic; unrealistic and impractical
The rationalist approach to architecture is always going to be a fated endeavour. Rationalists seek a purity and truth to things which is forever being undermined by the imperfections of reality. They place the highest value on ideas and concepts which come to us a priori, without reference to the outside world. Yet architecture requires that ideas be made physical, constructed and exposed to the mores of society. It is in this struggle between the fixed and the flux, the eternal and the eroding, that rationalism's quality is realised.
adjectiveexceedingly idealistic; unrealistic and impractical
The rationalist approach to architecture is always going to be a fated endeavour. Rationalists seek a purity and truth to things which is forever being undermined by the imperfections of reality. They place the highest value on ideas and concepts which come to us a priori, without reference to the outside world. Yet architecture requires that ideas be made physical, constructed and exposed to the mores of society. It is in this struggle between the fixed and the flux, the eternal and the eroding, that rationalism's quality is realised.
The starting point may be idealistic or impractical, but that doesn't really matter. Its a process and a worthwhile one.