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Bluesky started in 2019 as a research
at Twitter. It launched as an invitation-only
in February 2023. The platform is
to Twitter. Even the logos are similar. Twitter's was a blue bird; Bluesky has a blue
. The name Bluesky is from a Twitter idea that a bird flies
in an open blue sky. This open blue sky is like free
. Bluesky users can control their
. They can focus on posts they are interested in. If they want only
that have cat photos or posts related to
, they can choose feeds from a
.
