Shares of American company Alphabet (the owner of Google) suffered significant losses on Wednesday after its new AI program "Bard" provided an incorrect answer during an online advertisement. Alphabet's stock fell more than 7 percent by the end of Wednesday's session, amid increasing concerns about the future of the company's search business following ambitious plans from competitors. The company's market value dropped by approximately $91 billion in a single session, from $1.372 trillion to $1.281 trillion.