The document discusses how emotion has become the currency of success in the modern world, especially in the age of social media. It notes that with the rise of platforms like Facebook and Twitter, emotions are now on public display more than ever before. This has incentivized people to express and engage with emotions online in order to gain friends, followers, comments and social capital. The document also suggests that brands will need to focus on becoming emotionally rich and identifying their emotional sweet spot in order to succeed in this new landscape where perceptions are influenced more by others online than traditional measures like market share.