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A grant reviewer's demand for 200 subjects per arm doomed a multi-lab replication study. This feature explores the history of sample-size norms in funding, the hidden costs of statistical gatekeeping, and paths toward a more flexible ecosystem.

Warsaw's state-subsidized milk bars still serve full meals for under US$6. Where to find real ones, how to pay, what to order, and how locals judge freshness.

The traditional three-meal structure that has long defined Western eating habits is quietly disintegrating. For generations, the rhythm of breakfast, lunch, and dinner served as the culinary backbone of daily life, a schedule dictated by work hours, school bells, and cultural norms. Yet, a profound shift is underway, one that is dismantling these rigid timelines and replacing them with a more fluid, personalized, and opportunistic approach to eating. This phenomenon, known as Snackification, is not merely about the rise of the potato chip or the protein bar; it is a fundamental restructuring of our relationship with food, signaling the decline of the formal meal and the ascendancy of the small, frequent bite.

The study of ancient DNA has undergone nothing short of a revolution in the past two decades. What began as tentative attempts to extract genetic material from long-dead organisms has blossomed into a field that is fundamentally rewriting our understanding of human history, evolution, and even modern medicine. From revealing our intimate connections with Neanderthals to tracing the origins of devastating diseases, ancient genomics has become one of the most transformative scientific disciplines of our time.