What will dominate the news headlines of the future?
As part of the BBC's What If? season of programmes, we commissioned a week of news reports that take a light-hearted look at the future.
In the third instalment, a 10km- (6 mile -) high tower opens and the number of languages spoken in the world hits an all time low.
Have we got it right? Could these stories feature in the headlines in 2050?