<prompt> Human: Or should I just continue investing in index funds? Its turned out great so far.I have some background in mathematics and would like to use my spare time to learn more about the finance field. I understand little bits of macroeconomics but dont know anything about the more complicated stuff.Would appreciate any advice!  <response>: Or should I just continue investing in index funds? Its turned out great so far.Yes. Theres no better way to guarantee inferior performance than to get into active management or actively managed funds. 