What will human culture look like in 100 years?
Culture in the western world in 2000 is way different than it was in 1900, just like culture in 1900 was a far cry from 1800. So by the year 2100, what will be the cultural norms? When will it be okay to reboot your sinuses in public and what will it be like as the teenager-ization of adults continues well into old age? What kind of etiquette will be required between humans and sentient humanoid robots? What will be the pressing social issues of the time?