Time to reach 50%, 75%, 90%, 95% and 99% of humanity

Same 26 technologies; only levels with real data are shown, so the higher levels are almost empty

source: Our World in Data: literacy, electricity access (World Bank), internet users (ITU); 50% points as in the 50% chart (adoption-10k-years.pages.dev) • transform: Only sourced crossings are plotted. Triangles = not yet at that level (height = years so far). 99%: no technology on the list has a sourced 99% global figure. Writing/printing = literacy. Ancient techs: no data above 50%. • drawn 2026-10-21 01:36 UTC