Jonathan Mercer writes for readers who want ethics they can use. Raised between workshop benches and a house stacked with history books, he treats technology less as a miracle than as a craft that shapes our moral habits. His work draws threads from Aristotle to Ada Lovelace, from early automata to affective chatbots, asking how design choices become duties. He has advised product teams and policy groups on humane interfaces and speaks widely on the politics of empathy in code. Away from the desk he keeps a small notebook of phrases his children give to voice assistants-reminders that our first ethics are spoken at home. Mercer's north star is plain: build tools that keep people capable of care, and write in a way that helps them judge well under pressure.