Sometimes the next big thing isn't easy to spot.
You can see the full list of 33 quotes on CB Insights blog:
Blockbuster CEO Jim Keyes on streaming video
"Neither RedBox nor Netflix are even on the radar screen in terms of competition," Blockbuster CEO Jim Keyes told the Motley Fool in 2008.
His video-rental chain filed for bankruptcy in 2010.
Steve Ballmer on the first iPhone