President Joe Biden, in his farewell address Wednesday night from the Oval Office, pointed the finger at a “few, ultra-wealthy people” as he warned about the spread of misinformation and disinformation on social media and the abuse of artificial intelligence—each consequences of a “tech-industrial complex” that could grow even more powerful in the next Trump administration.

After four years in the White House – and a half-century in Washington – President Joe Biden has said farewell.