Virtual classroom
.
Multiple workplaces
.
Teleportation
.
Assembly line
.
Printed books
.
Steam trains
.
2 hour workday
.
Frequent career changes
.
Intellingent robots
.
Blackboard
.
Time clocks
.
Ocean liners
.
Learning pills
.
Non-polluting vehicles
.
E-books
.
Shared cars
.
Driveless car
.
Digital content
.