No Workers Left: Why Japan Is Betting Everything on Robots

Opening

Dear reader, the usual story goes: “robots are taking our jobs.” But in Japan, the opposite is happening. Robots are filling jobs that nobody wants to do in the first place. Honestly, I think Korea is heading down a similar path. But let’s start with Japan.

This past March, Japan’s Ministry of Economy, Trade and Industry (METI) put out a number: a goal of capturing 30% of the global Physical AI¹ market by 2040. It sounds bold, but this figure comes from desperation, not ambition. Japan’s working-age population peaked in 1995 and has been shrinking for 30 years straight, with a projected labor shortage of 11 million people by 2040.

So today I want to ask: how is Japan’s bet on Physical AI different from what the US and China are doing, and where will the value actually be created?

🏭 Not Efficiency, But Survival — Why Japan Is Different

In the West, the reason companies adopt AI robots is mostly efficiency — cutting costs, boosting productivity, maximizing profit. Japan’s motivation is fundamentally different.

Japan’s population shrank by 908,000 in 2024 alone — the 16th consecutive year of decline. The working-age population (ages 15-64) is just 59% of the total, far below the OECD average of 65%. The job-to-applicant ratio in construction is 5.6 — meaning 5.6 open positions for every single applicant. Nursing is projected to face a shortfall of 570,000 workers by 2040.

This isn’t a simple labor market problem. Sho Yamanaka, a principal at Salesforce Ventures, put it this way: “What Japan is facing is a physical supply constraint. Labor shortages mean the country literally cannot sustain essential services.” That single line cuts to the heart of Japan’s Physical AI strategy.

Hogil Doh, a partner at Global Brain, echoes the same point: “Physical AI is being purchased as a business continuity tool. The core question is how to run factories, distribution centers, and infrastructure with fewer people.” A joint 2024 Reuters/Nikkei survey found that labor shortage was the top reason Japanese companies cited for adopting AI.

In other words, in Japan robots aren’t a tool for doing things better — they’re a tool for keeping things running at all.