Picture a business trip in 2035. You tell an AI assistant that you need to meet a client in Paris, and within seconds it has decided whether the meeting justifies the trip, checked your company’s travel policy, compared air and rail options, calculated the emissions, booked a compliant hotel, arranged local transportation, and blocked recovery time on your calendar. At the airport, a digital identity stored on your phone could handle much of the documentation that once required passports, boarding passes, and repeated identity checks.