I need to understand where this quintillion thing comes from. This is not just higher than the current world GDP, but higher than the cumulative world GDP since

I need to understand where this quintillion thing comes from. This is not just higher than the current world GDP, but higher than the cumulative world GDP since the origin of our species. Source: Our World In Data has estimates of global GDP since 1 CE. I imported the raw data into a spreadsheet, and did a rough integral. I added the year 300,000 BCE as an origin point with $0. I get 3.4e16 in 2017 dollars, a mere 34 quadrillion. https://ourworldindata.org/grapher/global-gdp-over-the-long-run https://ourworldindata.org/grapher/global-gdp-over-the-long-...