Jin has certainly written some of himself into Wu Nan. For example, Wu resists going back to China after Tian'anmen, works all kinds of jobs to support himself in the US, gets into verbal confrontations with Chinese studying in the US, and wishes more than anything to be a poet.
武男有一部分的確是哈金的投射，諸如六四之後再也不願回到祖國，在美國為了生活打各式各樣的工，與中國留學生的言語衝突，人生的終極夢想是寫詩等等。