One of the crucial debates in the modern online space in recent years has been about the limits of permitted speech. While the First Amendment protects the rights of Americans to speak their mind, those of us living in Europe and much of the rest of the world are increasingly subjected to restrictions on what we are and aren’t allowed to say. In 2016, the British police detained and questioned 3,300 people for saying the “wrong” thing on social media. A recent example of this style of policing is the ex-cop who was told by the police that he needed to “check his thinking” after he retweeted an offensive limerick. He has brought a case against the police and has launched a crowdfunder to pay his costs. Traditionally, “hate speech” has been understood to mean words aimed at stirring hatred and violence towards members of various protected groups. But today hate speech means whatever tech giants want it to mean. Earlier this year, Francis Foster and I interviewed transgender TV presenter India Willoughby about life …