Imagine we are creating an encyclopaedia for extraterrestrials. An argument breaks out over how we describe deaf people: some say hearing loss and others say it's deaf gain. Help us to decide! In this engaging debate presenters will describe arguments from each side, drawing from research in the field of deaf studies. 'Deaf gain is defined as a reframing of deaf as a form of sensory and cognitive diversity that has the potential to contribute to the greater good of humanity' (Baumann and Murray, 2009). The audience will be invited to take part and vote.