Just ahead of its 2021 virtual investor day on Thursday, Twitter this morning announced its three long-term goals focused on user base and revenue growth, and a faster pace of shipping new features across its platform. The company said it aims to “at least” double its total annual revenue from $3.7 billion in 2020 to $7.5 billion or more in 2023. It also expects to reach at least 315 million mDAUs — that’s Twitter’s self-invented metric for “monetizable” daily active users — by the fourth quarter of 2023.