What's up with the "Proust questionaire" in every issue of Vanity Fair?

From George Loper:

“The young Marcel was asked to fill out questionnaires at two social events: one when he was 13, another when he was 20. Proust did not invent this party game; he is simply the most extraordinary person to respond to them.”

he made the questionnaire famous, several weekend-supplements here in Europe use it on well-known people. i worked through the whole french text during a very anxious period in my life. it took me about six months, reading every day. at times his long, elliptical sentences really calmed me down. like letting yourself be carried away. of course he was himself a very anxious person, writing ultimately became his only reason for living – it made his existence bearable. Same with Kafka in my opinion.