This only seems sexist if you think that people only speak when allowed to speak. People speak when they speak, the rules of politeness are universal, and she h

This only seems sexist if you think that people only speak when allowed to speak. People speak when they speak, the rules of politeness are universal, and she had every right to speak up, and every right to pipe down. She could have just as easily been a bit uncomfortable, or just more interested in listening. The host was overbearing on the whole conversation from what I see. There could be any number of reasons why the host might interrupt the string theorist; and the argument that it must be sexism is just so just-so. I don't see why people should be expected to all be equally sonorous, when clearly people are not equally interested in it.