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"Twitter announced they are now displaying older tweets, when relevant, in their search results.Twitter said that the older tweets that show up in the search results represents a \"fairly small percentage of total Tweets ever sent.\"  They use engagement metrics such as \"favorites, retweets and clicks\" in their algorithms \"to determine which Tweets to show.\"For example, I searched for [space shuttle] in Twitter and this tweet from a while back showed up at top:Is it relevant? That is the big challenge Twitter needs to solve.Forum discussion at WebmasterWorld."^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/old-tweet-twitter-search-16341.html>