Indeed, Metcalfe's law states that the total value of a good or service that possesses a network effect is roughly proportional to the square of the number of customers already owning that good or using that service.
Not quite... federal law is federal law and is in addition to state law, except where there is a state and federal law that are virtually identical, in which case the federal law may "supersede" the...
Certain states vote on a law differently than others. Like the way Clifornia allows gay marrige and say, Kansas, does not. There are country laws and individual state laws. States differ in what they...