Identity is a hard thing to define. What makes us who we are? We have social identities, shaped by our affinities and proximities to social groups, cultural identities informed by values, languages, rituals, traditions, and a whole multitude of different phenomena that combine to make us who we are.

In late 1999, NASA announced that its Mars Climate Orbiter, a multi-million-dollar robot probe designed to study the weather and climate of Mars, was lost somewhere in space. The craft had failed to manoeuvre into its optimal orbit, ending either on a course towards the sun or in a fatal collision with the red planet. Investigations uncovered the source of the blunder: one team working on the orbiter had been using metric measurements, another team had been using imperial.

The opening pages of Knife give an account of the attempted murder of Salman Rushdie at a speaking engagement in upstate New York on 12 August 2022. His assailant charged out of the audience and onto the stage, where he attacked the author, using one of several knives he had brought along, for exactly twenty-seven seconds. Rushdie is precise about that detail, which one imagines is rather a long time if you are being stabbed. By the time he was restrained, the would-be assassin had seriously wounded Rushdie’s left hand, punctured his torso multiple times, slashed his neck, and stabbed him in the right eye deeply enough to destroy the optic nerve.

The ‘Bastard of Bingil Bay’ features on no banknote or coin, nor is he listed in any roll-call of ‘important Australians’, and yet, if it were not for John Büsst, it is likely that twenty-odd national parks and rainforest reserves on the far north-east coast of Queensland would not be so designated and might in fact have been obliterated. It is also probable that, without Büsst, today’s fight for the Great Barrier Reef would have already been lost, the vast ecosystem fragmented into a slew of cement quarries and cheap limestone pits. Considering the extent to which this vast coral labyrinth has shaped the identity of modern Australia, the relative absence of Büsst’s influence from the historical record is doubtless representative of the many such travesties historians seek to rectify.

We Are Free to Change the World, an intellectual biography of Hannah Arendt, is Lesley Stonebridge’s seventh book, and is informed by the author’s expertise in twentieth-century literature, history, law, and political theory. Stonebridge is a Professor of Humanities and Human Rights at the University of Birmingham, and a regular contributor to the New Statesman. A successful scholar, she is also used to communicating to audiences beyond the academy.

Shortly after Black Saturday, David Lindenmayer was giving a seminar on post-bushfire recovery when a member of the audience yelled out, ‘If it wasn’t for you greenies, none of this would have happened.’ Lindenmayer’s response was neither defence nor attack, but rather to rephrase the man’s words. ‘Your hypothesis,’ he said, ‘is that a fire in a forest that is logged and regenerated will be less severe than a fire in an intact forest.’ Many years of research followed this heckle. The result? A counter-intuitive finding that fire severity increases in logged forests.

Iain McCalman was born in Nyasaland in 1947, and educated in Zimbabwe and Australia. He writes British, European, and Australian histories of popular science, politics, conservation, and literary cultures. His books include The Reef: A passionate history (2013) and Delia Akeley and the Monkey (2022). His new book is John Büsst: Bohemian artist and saviour of reef and rainforest (NewSouth, 2024). He is a former President of the Australian Academy of the Humanities and was Co-Founder and Co-Director of the Sydney [University] Environment Institute (2011-21). He was awarded Officer of the Order of Australia in 2007 for ‘services to history and the humanities’.

Decolonising has reached the classics. Complexity, diversity, and entanglement are in. Greece and Rome are, well, out. The movement to ‘reclaim’ Antiquity began with noble aims: to emancipate the ancients from the prism of politics and war through which we like to see them, to emphasise the role of technology and trade in their lives, and to make women and people of colour visible among them again. Alas, decolonisation all too often seems to have descended into ugly arguments over restitution of artefacts (Elgin marbles, anyone?) or the skin shade of this or that Roman notable (Septimius Severus or St Hadrian of Canterbury, for example). Books such as Josephine Quinn’s are the sensible, balancing side of the equation, an antidote to so much virtue signalling and grievance mongering. Quinn’s is an ancient world decentred – provincialised, to invoke Dipesh Chakrabarty’s celebrated term. Greece and Rome remain, but must jostle with others for attention, space, and significance. The argument is simple. Antiquity was far more multipolar, dynamic, and integrated in reality than in the civilisational – and, indeed, civilising – narratives that Europeans since Petrarch have been telling themselves about it.

One of Caledonian Road’s primary characters, Milo Mangasha, tends to speak in political slogans, which his childhood friend identifies as ‘college talk’. Readers may recognise in Milo the rhetoric of characters in Andrew O’Hagan’s previous novel, Mayflies (2020), a popular and critical success that was subsequently adapted for television. Like Mayflies, Caledonian Road is stridently certain about its political and moral positions. It reads like a passionate argument for purification. In this fictional world, set in contemporary Britain, a person who maintains ties with corrupt and wealthy conservatives, while voicing left-wing principles and ideals, risks a ‘crack-up’. Failing the test of moral consistency turns you into a cipher, a hollow man, a danger to yourself and others.

I'm a whitefella who has never met Bruce Pascoe, but I’ve heard a lot about him. For the past few years, I have worked across Gippsland in the field of Aboriginal cultural heritage, and many of the people I meet mention his name. Experience has led me to try and dodge most of these conversations, knowing that our discussion will probably satisfy neither party, but I’m not having much luck. People want to talk about Pascoe, and often it is unpleasant. I have heard him described as a charlatan and worse, usually by those who have not met him, spoken with him, or read his work. Most of these critics are whitefellas, preoccupied with questioning or discrediting his Aboriginal heritage.