Elon's first full week at Twitter is in the books.In October, he promised "very rapid product evolution" once he took over.He wasn't joking. Behind the scenes, Twitter is working on a new video platform, a new search engine, a new verification system, community-based fact-checking, content monetization, and much else.Bigger than all that, however, is Dogecoin integration, which was teased several times throughout the week.Let's take a look at why Dogecoin will play a monster role in the future of social media, the viral $8 meme that took over Twitter, and a grassroots campaign to memorialize Doge forever.