- Bitcoin would become the decade's best investment by far
- the President of the US would conduct foreign policy through Twitter
- electric scooters would become a billion dollar business (Bird, Lime, etc.)
- the sharing economy would threaten the taxi and hotel industries (AirBNB and Uber)
- escalation of school shootings
- the explosive growth of quantitative easing
- negative nominal interest rates on sovereign debt
- revelations of mass surveillance by the US government
- streaming video services would begin to produce content rivaling major studios in quality
- Amazon would become the everything company
- DNA testing would become a major recreational activity with numerous judicial and social implications
- the US would approach energy independence, driven largely by a boom in oil extraction technologies
Also interesting to consider how all of these ideas would have seemed more or less ludicrous in 2010.