I just finished reading "evidence based TA" by Aronson, HOLY SH*T...what a downer. I already read most of that one long post about this subject. near the end of the book, he mentions that his study is actually quite limited due to the fact that he only tested one variable at a time. In the opinion of the expert traders out there would his results have been different had he employed a more inclusive algorithm?? also, if not TA what else would short term traders use?? both of Niedderhoffer's books slam TA as voodoo as well. I am just getting started in this business. should I not be devoting as much time to learning this stuff??