In 2033
The main reason is the political disagreement between members of the European Union

As the European Union is part of NATO, and the U.S. is planning to start a war against Russia and China. Many in the European Union will not like this and will decide to break the alliance
EU crisis: Majority of Europeans believed bloc will fall apart within 20 years
Europe Will Disappear: Prophets Told How It Will Happen
Accuracy 20
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The main reason is the high cost of production
No catalyst to produce hydrogen from coal or water

Hydrogen would be a good substitute for gasoline
Advantages and Disadvantages of Hydrogen Energy
Why are we still not using hydrogen engines?
Accuracy 20
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By starvation
The results of a study evaluating the effect of interval fasting on the course of type 2 diabetes mellitus have been published. The interval fasting regime included repeating 6 cycles of 5 days of strict calorie reduction followed by 10 days of normal nutrition. The primary endpoint of the study was to achieve remission of diabetes mellitus.

Pharmaceutical companies don't invest in developing diabetes treatments because they want to make money off people for the rest of their lives by selling them insulin.
Effect of an Intermittent Calorie-restricted Diet on Type 2 Diabetes Remission: A Randomized Controlled Trial
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Get rid of castes
Castes impede the progress of India. Once it is eradicated, there will be no problems in India

All the dreams of India becoming a superpower, a world economic leader by the middle of the 21st century are hardly realizable as long as nearly a fifth of the population is considered an outcast and has great difficulty fitting into modern economic relations.
Why caste riots began in India
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