Because Internet

"Explores the deep forces that shape human language and influence the way we communicate with one another. She explains how your first social internet experience influences whether you prefer 'LOL' or 'lol,' why sparkly tildes succeeded where centuries of proposals for irony punctuation had failed, what emoji have in common with physical gestures, and how the artfully disarrayed language of animal memes like lolcats and doggo made them more likely to spread"--Amazon.