Alex Ljung gave a talk at LeWeb 2011 in which he argued that sound will ultimately be bigger than video on the Internet. I am a big fan of contrarian thinking and argument and Alex does that very well in this talk. It's about 15 minutes long (there's another 8 minutes at the end of this video that is not related to Alex' talk). If you can find the time to watch it, do that and then let's discuss his arguments in the comments.
Disclosure: Alex is the founder of SoundCloud, which is a USV portfolio company.
