Is it advantageous or disadvantageous for young scientists to head for interdisciplinary or innovative research? A quantitative study of about 4000 U.S. physicists and 4000 U.S. psychologists conducted by Oliver Wieczorek under the direction of Said Unger shows differences between the two research cultures. Interdisciplinarity has a beneficial effect on the research impact of physicists, while it has a diminishing effect among psychologists. Moreover, young scientists should pursue novel lines of research - as long as they can be combined with already established lines of research.