Some other projected lifespans (with 95% confidence) include industrial technology (estimated to last somewhere between 7 years and 10,000 years), the internet (between 7 months and 975 years), and Wikipedia (between 6 months and 772 years). Jim Holt analyzed longevity estimation and concluded that our understanding of humor and number will survive for at least one million years. Humans share these traits with other species, which implies we share these traits with some common ancestor that lived millions of years ago.
