Every smartphone-equipped college student played Robot Unicorn Attack for a month at one point too. It's a pretty well-made game, hilarious, fairly demanding...

Every smartphone-equipped college student played Robot Unicorn Attack for a month at one point too. It's a pretty well-made game, hilarious, fairly demanding...and absolutely boring after you play it for the 50th time. At this point, the speed of viral distribution represents both the blessing and the curse of social companies. You can take your exponential growth this month and extrapolate it over the next year, but that doesn't take into account the dozen newcomers that will catch the attention of the fickle 15M next month. When Metcalfe's law works on a scale of weeks instead of years, network effects become more transient and less valuable. Hopefully this helps teach the market that eyeballs alone should not justify an enormous purchase price.