I disagree. Tonight I heard a 70-year old grandmother observe with surprise that her best friend of 50 years, although quite computer-savvy, had not even heard

I disagree. Tonight I heard a 70-year old grandmother observe with surprise that her best friend of 50 years, although quite computer-savvy, had not even heard of Dropbox! When your company is capturing a mass market to the point of going viral among grandmothers, the idea that it might be worth billions is not "retarded" or "just stupid".