Myself, for a long time I believed tech startups are micro-R&D for new technologies. Couple years of HN and in the local startup community later, I finally realized that a lot of Internet startups tend to turn investor money into business model R&D - i.e. ever more innovative ways to break an existing market and siphon off enough wealth to get flipped and net the founders FU money. Regular people don't know any of that; they don't understand how the game is played, or why - they only enjoy free web services and cheap pirate taxi rides.

They were from about 1970 to 1998. Then came the dot-com boom.

During that period, most VC firms made money. Now, VC funds as a a class are a net lose.