The Maturation of the Mobile Paradigm: From the Slab Form Factor to Ambient, Agentic, and Neural Computing
The global smartphone market has entered terminal maturation. Replacement cycles have stretched to 3.84 years in the US, 64% of users report innovation fatigue, and IDC forecasts a 13.9% shipment decline in 2026. The rectangular slab has achieved functional perfection — a local maximum in industrial design. The next three decades will see computing dissolve from hand-held glass into ambient agentic systems, head-mounted AR constellations, and direct neural interfaces. This dossier maps the complete transition vector: the physics walls constraining silicon, the economic disruption threatening trillion-dollar app store oligopolies, the regulatory forces reshaping device architecture, and the biological toll demanding a fundamental interface paradigm shift.