Twitter Camera, Q&A, and Mirror are among a handful of new efforts Twitter is making to boost user growth in 2016, including toying with the idea of increasing tweet limits from 140 characters to 10,000. The 10-year-old social site’s growth has slowed in recent years compared to rivals like Facebook and Instagram, which are swiftly expanding their user bases. Twitter has 320 million monthly active users, while four-year-old Instagram has 400 million, and Facebook has an incredible 1.55 billion.

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