This chapter focuses on the perhaps most recently developed worldview examined in the book, transhumanism. The transhumanist core conviction is that, by utilizing biotechnology and AI, we should radically change, improve, or refine humanity, even to the extent of creating a new species, the posthuman.

Now in its second edition, this handbook is a current overview of second language (L2) research, providing state-of-the-art synopses of recent developments in each subarea of the field and bringing together contributions by emerging scholars and experts in second language acquisition (SLA). Since the first edition, broad sociopolitical movements, alternative views of bilingualism, emergence of global markets, vast expansion of electronic resources, the development of social media and the availability of big data have transformed the discipline, and this edition has been thoroughly updated to address these changes. It is divided into six main parts: Part I situates SLA in terms of research and practice; Part II explores individual cognitive, age-related and neurolinguistic similarities and differences; Part III outlines external, sociocultural and interactive factors; Part IV presents profiles of bilinguals who take differing paths of acquisition; Part V describes interlanguage properties; and Part VI comprises clear models of L2 development.

Chapter 6 explores supernatural rumours as a form of supernatural politics, a means whereby the uneducated put their fears and concerns about the accession of the CCP to power into the public domain. The chapter focuses on two particular ‘epidemics’ of rumour, the first of which told how the Soviet government had asked Mao Zedong for the hearts, livers, eyes, testicles, and breasts of 20,000 Chinese people in order to make an atom bomb; the second of which occurred in the wake of the famine and told of a conversation that had been heard between two toads which predicted that the elderly would not survive unless the young baked them buns in the shape of toads. The chapter explores the meanings of both rumours, analyses their disseminators, evaluates the effectiveness of the CCP’s response, and asks how far they were acts of resistance.

Chapter 6 opens with a discussion of some of the letters Keats sent his brother and sister-in-law after they migrated to America in the summer of 1818. It explores the paradox that letters can at times generate a sense of intimacy not so much in spite of distance but because of it. It looks at the way in which Keats can find people ‘pressing’ on him, and even oppressive, such that he can seem to value the prosthetic sense of presence offered by a letter and the personal space it can allow a different kind of intimacy. The second half of the chapter considers letters as ‘touching’, particularly in relation to Keats’s love letters to Fanny Brawne, where he seems particularly attuned to the physical touch of a letter and the way that a letter can be emotionally ‘touching’ precisely because it is distanced, mediated, and delayed.

Bieral’s service in the Civil War, particularly at the Battle of Ball’s Bluff, transformed his public image from thug to hero. The chapter chronicles his bravery, injuries, and subsequent court martial, revealing tensions between his violent past and military discipline. Bieral’s postwar activities – supporting Reconstruction, working in customs, and engaging in political violence – illustrate the persistence of private coercion in public life. His association with figures such as Boss Tweed and involvement in the Erie Railroad wars underscore the continuity of corruption and brutality. The chapter situates Bieral within the contested terrain of postbellum governance and reform.

Ocean acidification (OA) science has rapidly developed since 2005; however, international action remains limited. This chapter explains the complex scientific background of OA to non-scientists. OA is measured on a logarithmic pH scale, with oceans becoming 40 per cent more acidic since pre-industrial times. Three groups of compounds contribute to acidification: CO2 (the primary driver), nitrogen oxides (NOx), and sulphur oxides (SOx). These substances enter the oceans through various means, such as anthropogenic emissions, geoengineering, coastal activities, and scrubber effluents from ships. Additional ocean stressors, such as climate change, pollution, and overfishing, compound the effects of OA, making adaptation more challenging. OA threatens calcifying organisms such as corals and oysters, disrupts food webs, and impacts human ecosystem services valued at potentially $1 trillion annually by 2100. Adaptation options include blue carbon ecosystems, marine protected areas, and fisheries management. The issue encompasses ocean, atmosphere, and land systems across multiple timescales and spatial levels, necessitating diverse governance approaches that address both global CO2 emissions and local stressors.

The introduction justifies telling the story of the forgotten bully Louis Bieral. His life was extraordinary not only because of his interactions with famous people, but also because of his wide range of adventures. Moreover, his brutal career helps us understand the importance of private, nonlethal violence to the operation of nineteenth-century America.

Completing the arc from the desire to assert membership and rights as an handicapé, the final chapter considers how disabled Kinois turned away from this identity to pursue one of becoming a responsable, someone ‘responsible [for others]’. While controversial, begging and brokering gave access to hard-won economic resources that made it possible to have and care for children. Aspiring to such responsibilities, disabled people showed that integrating economic and social values was both means and ends. By successfully fulfilling the responsibilities of parenthood – the comparatively stable, higher value of social respectability that was once considered impossible for disabled people to achieve – they sought to become ‘valuable people’ (batu ya valeur). Claiming full adult personhood, they both conformed to and transformed the measurement of this highest regime of personhood, enjoining a debate over whether it is good to have many or fewer, well-supported children. Between action and aspiration, a testing and critiquing disposition towards value demonstrates how the extraordinary livelihood strategies of disabled people in the margins of urban society may be a most productive stage from which to examine the emerging debates about what is, or should be, good in society.

The introduction outlines the key themes of the book and offers brief summaries of individual chapters. It offers a brief overview of Keats’s letters and a summary of their publication history, their reception, and their place in his public reputation. The chapter proposes that Keats’s letters can be considered as a body of work in its own right, and that literary criticism needs to develop an epistolary poetics to enable and support a formal critical reading of his correspondence.