Positive:
In 30 years, more people will be vegan.
In 30 years, people will use only renewable sources of energy.
In 30 years, there won't be discrimination because of race or sexuality.
In 30 years, people will be driving only electric cars.
Negative:
In 30 years, people will be fighting over food.
In 30 years, the Earth will be polluted.
In 30 years, education will be shorter and less effective.
In 30 years, holograms will be popular and it would be impossible to see singers live during concerts.
