On Side 1 of Television’s 1977 LP ‘Marquee Moon’, you’ll hear Tom Verlaine sneer: “How does a snake get out its skin? Here's a depiction…” The answer is of course ‘Friction’, as the song title has already given away. Use that F word in a tech environment though and people recoil in horror. There are very few concepts more repulsive to a UX designer or Product manager than that of friction. Metrics are dedicated to the elimination of friction in all its unseemly forms.