Legendary VC Fred Wilson (@fredwilson): “USV has now had over 10 early-stage funds & every single one of them has produced 2-3 really great companies.” USV backed: › Twitter › Stripe › Coinbase › MongoDB › Twilio › Duolingo › Etsy › Indeed › Abridge “There are probably 20 or 25 companies that we've invested in over the last 20 years that I would consider to be extraordinary.” “It's never a straight line to the top.” “Twitter, now we know what it is—it's one of the most important pieces of…