Social media users and content creators should be able to ditch and switch platforms without losing their followers, renegade economist Yanis Varoufakis argues. The threat of the TikTok ban in the United States is highlighting the power social platforms hold and the far-reaching effects a shutdown could have. Mr Varoufakis — the former Greek finance minister, now a prominent economist and author — is calling for regulators to enforce "interoperability". This would see people's followers attached to social accounts, not particular platforms. Yanis Varoufakis is a Greek economist and author, who argues the owners of big tech have become the...