It's the end of the hedge fund world as we know it, or so it appears. K.C. Nelson, the lead portfolio manager at Driehaus Capital Management, has lain out a grim assessment of the industry in a commentary to clients that perfectly sums up the many issues facing the industry. From long-term structural trends to current market conditions, Nelson lays out an ugly picture for hedge funds that he thinks will end with a massive shrinking of the industry. "So what’s the bottom line of these changing industry dynamics?" Nelson wrote. "I BELIEVE THERE WILL BE A CULLING OF HEDGE FUNDS LIKE WE'VE NEVER SEEN BEFORE. I'D ESTIMATE THE NUMBER OF FUNDS GETS CUT IN HALF OVER THE NEXT COUPLE OF YEARS." NOW WATCH: FORMER GREEK FINANCE MINISTER: The single largest threat to the global economy