It is not possible to trade without knowing enough to trade well.
However, information, reading books, articles, newspapers, newsgroups, etc. will not put money into our pocket. Only actual trading will.
According to George Andrea's research it took 1500 years to double the amount of human knowledge a few hundred years ago. Today, the available information doules with each year. (Think of Internet just as an example.)
So how can you keep up?