The world's first tweet posted by Twitter CEO Jack Dorsey has turned 15 and fetched $2.5 million (over ₹18 crore) at an auction so far. The 15-year-old tweet, "just setting up my twttr", was put up for auction as an NFT (non-fungible token) by Dorsey himself on March 6. Dorsey would donate the proceeds in Bitcoin to a charity.