X running on the Samsung Galaxy Fold (Image credit: Daniel Rubino) What you need to knowElon Musk recently announced "the world's most powerful training cluster" that will be used to transform Grok into "the most powerful AI by every metric by December this year."Interestingly, X recently shipped a new Data Sharing experience that's enabled by default and uses your data to train Grok.The feature is hidden in the platform's privacy settings and can only be disabled on the web app.Earlier this wee...