How often have you heard it said that "patents foster innovation?" That phrase rings true in pharmaceuticals, where investment requirements are enormous and failure common. But does it also apply in areas such as software? Does it really take the promise of a legal monopoly to motivate a typical founder or CTO to innovate? And what about the advantages patents give big companies over emerging ones, simply because the former can credibly threaten expensive patent litigation while the latter cannot? I'll talk about the negative impacts of software patents another time. But today I'd like to make the case...