Tea
Tea delivers on its promises with extraordinary consistency. The same leaves, steeped at the same temperature for the same duration, produce virtually identical results whether in London, Lagos, or Lahore. This reliability forms the foundation of tea's global success. Consumers know precisely what they will receive, how long preparation requires, and what effects will follow.
Supply chains have achieved remarkable stability. Despite originating in specific growing regions, tea reaches consumers worldwide with minimal interruption. Even during global crises, tea production and distribution continued. The beverage's reliability extends to its effects: caffeine metabolism varies little between individuals.
Mars
Mars missions carry inherent unreliability that engineering can mitigate but never eliminate. The failure rate for Mars missions historically exceeds 50%, with spacecraft lost to launch failures, trajectory errors, landing mishaps, and communication breakdowns. The 225-million-kilometre distance introduces unavoidable signal delays of up to 24 minutes, making real-time intervention impossible.
Even successful missions face unpredictable challenges. Dust storms can last months, obscuring solar panels. Equipment degrades in ways ground testing cannot anticipate. The planet itself remains geologically active enough to surprise.