later we hear from y.c. founding president also dubbed y.c.'s secret weapon, jessica livingston. ♪ emily: continuing with our special edition of "bloomberg west," unicorns, bubble or boom, we focus on those who have billion dollar plus valuations with y combinator. mutual funds have poured money into startups hoping to hitch a ride to a lucrative i.p.o. but now they're riding down -- writing down valuations by significant amounts. they dropped values of companies like drop box by 20%. at its peak, dropbox was at $9 million. one of its closest rivals has gone public but it's market value is $1 billion less than it was at the time of i.p.o. but dropbox has more than 500 million users and its main product is beloved. joining taos put it in perspective, drops do box president and y combinator president is still here as well. i want to talk about the elephant in the room, what do you have to say to the mutual funds? >> we don't pay much attention to it. we have 500 million people using drop box, eight million people using dropbox, 500,000 of them pa