I ask Gates, himself a target of some pretty wild conspiracy theories, what he thinks of the decision taken by Zuckerberg after Trump's election to dump fact-checking in the US on his sites. Gates tells me he's not "that impressed" by how governments or private companies are navigating the boundaries between free speech and truth.

Balancing free speech and truth is a delicate challenge for both governments and private companies. Gates' lack of enthusiasm towards their approach highlights the complexity of this issue in today's digital age.