🔍 Read the full analysis: Which Sector Is Your Job In? Field, Factory, Or Office on ThorstenMeyerAI.com
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TL;DR
ThorstenMeyerAI.com published the first episode of its 60-part Work After Work series on Nov. 2, 2026, using the field, factory and office framework to explain long-term changes in employment. The source cites historical estimates showing agriculture’s share of U.S. employment falling from 73.7% in 1800 to an International Labour Organization modelled estimate of 1.5% in 2025; its longer-term automation forecast is explicitly presented as a thesis, not a fact.
ThorstenMeyerAI.com published the first episode of its planned 60-part Work After Work series on Nov. 2, using the categories field, factory and office to describe how employment has moved from farming toward manufacturing and services. The opening report argues that the framework helps readers understand long-run changes in where people work, while distinguishing its historical data from the author’s separate speculation about automation.
The article divides economic activity into three broad sectors. The primary sector takes resources from nature, including farming, fishing and forestry; mining is usually counted there, though classifications differ. The secondary sector makes things and includes manufacturing, construction and energy. The tertiary sector provides services, from transport and retail to health care, education, government and office work.
To illustrate the categories, the report follows a loaf of bread: growing wheat is primary work, milling and baking it in a plant are secondary work, and transporting and selling it are services. The author cautions that the categories are blunt statistical tools. For example, a software engineer employed by a carmaker might be classified differently across statistical systems.
The article reports that U.S. farming accounted for 73.7% of the labor force in 1800, according to estimates by economic historian Stanley Lebergott, and 12.0% in 1950. It cites an ILO modelled estimate of 1.5% in 2025. These figures use different historical sources and methods, a distinction readers should keep in mind when comparing them.
How Employment Changes Across Sectors
The framework matters because it offers a straightforward way to track where people earn their living as economies change. The decline in agriculture’s share of employment does not, by itself, mean that food production has disappeared; it reflects a smaller portion of workers being employed in that sector. The report’s central point is that workers have shifted among sectors as productivity, technology and demand have changed.
The article also challenges the claim that the United States no longer makes goods. It says U.S. factory employment is about 35% below its June 1979 peak, while real manufacturing output in 2025 was about 1.9 times its 1979 level. The contrast highlights why employment counts and production measures tell different stories: a sector can produce more while employing fewer people. The figures are reported by the source and are not accompanied in the supplied material by full underlying tables or methodological detail.
For workers and policymakers, the sector map helps frame questions about job displacement and new employment. But it does not predict which occupations will grow, how quickly a worker can move between sectors, or whether new work will match the pay and conditions of jobs that disappear.
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The Origins of the Three-Sector Map
The three-part classification emerged from economic writing in the first half of the 20th century. The source says New Zealand economist Allan G. B. Fisher used the term “tertiary” in a book written in 1934 and published in 1935. Fisher later described a shift from primary activities into manufacturing and, to a greater extent, services.
Economist Colin Clark compared employment patterns across countries in The Conditions of Economic Progress, published in 1940. He described movement from agriculture to manufacturing and then to commerce and services, and observed that industry’s employment share does not keep rising indefinitely. French economist Jean Fourastié argued in 1949 that services could absorb workers freed by technical advances in other sectors. Those ideas provide the historical backdrop for the series’ questions about how technology reshapes work.
The source also cites changes beyond the United States: China’s primary-sector share of employment fell from 83.5% in 1952 to 22.2% in 2024, while Japan’s census recorded a decline from 53.8% in 1920 to 3.2% in 2020. It says ILO modelled estimates put services ahead of farming in global employment from 2001 onward. The measures and national classifications are not identical, so the figures are best read as reported trends rather than perfectly comparable counts.
“My thesis, not a fact: within a decade or a few decades, automation could become a sector of its own, doing up to 90% of the work with no human hand.”
— Thorsten Meyer, author of the ThorstenMeyerAI.com report
Limits of the Sector Data
The source presents historical and modelled figures from multiple datasets, but the supplied material does not provide links, full tables or a detailed account of how each estimate was calculated. The U.S. historical series and the ILO’s 2025 modelled estimate should not be treated as a single continuous measurement without checking their definitions and methods. The report also notes that classifications vary, particularly for mining and some jobs inside manufacturing firms.
The proposed automation sector is the author’s speculation, not a measured category or confirmed economic development. The source does not specify how “up to 90% of the work” would be defined or measured, which tasks or industries would be included, or the assumptions behind the time frame of a decade or a few decades. It therefore remains unclear whether automation will produce a distinct employment sector, or how any such change would affect the number and quality of human jobs.
The Series Turns to Automation
Work After Work is described by ThorstenMeyerAI.com as a daily series of 60 episodes about how economies are built, how work shifts and which tasks remain human as machines take on more. The first episode establishes the sector framework as a starting point for later discussions of technology and employment.
The source says Episode 48 will examine the automation thesis. No publication date or evidence for that episode is given in the supplied material. Until then, the claim that automation could become a sector in its own right should be read as a stated thesis rather than a settled conclusion.
Key Questions
What are the three sectors of the economy?
The primary sector takes resources from nature, the secondary sector makes goods and builds infrastructure, and the tertiary sector provides services.
What is the news development?
ThorstenMeyerAI.com published the opening episode of its planned 60-part Work After Work series on Nov. 2, 2026. It introduces the three-sector framework as a way to discuss changes in employment and technology.
How much of the U.S. labor force worked in farming in 1800?
The source cites Stanley Lebergott’s estimate that farming employed 73.7% of the U.S. labor force in 1800. It also cites an ILO modelled estimate of 1.5% for 2025; the figures come from different sources and methods.
Does the report say the United States no longer manufactures goods?
No. It says U.S. factory employment was about 35% below its June 1979 peak, while real manufacturing output in 2025 was about 1.9 times its 1979 level. Those measures track employment and output, respectively.
Is automation already a separate economic sector?
The report does not establish that. Meyer describes automation becoming a sector of its own as his thesis, and says a later episode will examine the claim.
Source: ThorstenMeyerAI.com
