Fortunately, for those of us who aspire to real, non-superficial interdisciplinary research, the great Swiss cultural historian, Jacob Burckhardt, provided a splendid, if not complete, defense more than 100 years ago:
Dilettantism owes its bad reputation to the arts, where, of course, one is either nothing or a master who devotes his entire life to them, because the arts demand perfection.
In learning, by contrast, one can attain mastery only of a limited field, namely as a specialist, and this mastery one should attain. But if one does not wish to forfeit the ability to form a general overview - indeed, to have respect for such an overview - then one should be a dilettante in as many fields as possible - at any rate, privately - in order to enhance one's own knowledge and the enrichment of diverse historical viewpoints. Otherwise one remains an ignoramus in all that lies beyond one's specialty, and under the circumstances, on the whole, a barbarous fellow.Jacob Burckhart, Weltgeschichtliche Betrachtungen (1905).