> For the complete documentation index, see [llms.txt](https://gptt.gitbook.io/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gptt.gitbook.io/en/ai-news/human-productivity.md).

# Human Productivity

![](/files/XLhLJgO82ZQskr8aq1Df)

### GPT technology triggers the fourth great explosion of human productivity, as humans move from being liberated from physical labor to being liberated from mental labor

> <mark style="color:red;">**Steam Age**</mark>
>
> First: 1760-1840 Steam engine technology
>
> <mark style="color:red;">**Electrical Age**</mark>
>
> Second: 1860-1950 Electric power technology
>
> <mark style="color:red;">**Information Age**</mark>
>
> Third: 1950- present Computer and information technology
>
> <mark style="color:red;">**Intelligent Age**</mark>
>
> Fourth: 2011- ongoing Big data and AI technology