The liberal establishment in London, New York, and Sydney has embraced extreme views on questions like gender, race, and climate change. Dissenters are silenced by fear of shaming or cancellation, despite the absurdity of these new orthodoxies. Brendan O'Neill argues for the need for more heretics in today's society who challenge prevailing groupthink. In this collection of essays, he champions heresy as a force for societal progress while committing some heretical acts of his own.