One case of the changing the level of friction drastically changing things was when, in the late 1990s and 2000s, Napster and successive services made spreading copyrighted files much, much easier than it had been. These days you don’t need to pirate your music because you can get almost any recorded song on YouTube whenever you want for free (possibly with an ad) or on Spotify for a cheap subscription fee...
One case of the changing the level of friction drastically changing things was when, in the late 1990s and 2000s, Napster and successive services made spreading copyrighted files much, much easier than it had been. These days you don’t need to pirate your music because you can get almost any recorded song on YouTube whenever you want for free (possibly with an ad) or on Spotify for a cheap subscription fee...