The practical answer is, no it would be totally impossible for young or foreign people to get access to roof of a building that stands in the heart of a giant city and to put a cable across.
Philippe PetitLife should be lived on the edge of life. You have to exercise rebellion: to refuse to tape yourself to rules, to refuse your own success, to refuse to repeat yourself, to see every day, every year, every idea as a true challenge - and then you are going to live your life on a tightrope.
Philippe Petit