Twitter Blue Subscription Service Is Live

Twitter has launched a subscription service called Twitter Blue, offering features like an undo option for tweets, better organization of bookmarks, and faster customer service. Aimed at prolific users, it costs $3 a month. While it doesn't allow full tweet editing, it provides a 30-second window to recall tweets. The service is expected to diversify Twitter's revenue, which is heavily reliant on advertising, by attracting businesses and power users.

What is the significance of the 30-second window for recalling tweets?

In what ways might Twitter Blue diversify Twitter's revenue?