Here is a concise summary of the hypothetical scenario of a unified Africa:
**Unified Africa: Key Facts**
* **Territory:** 30 million km² (20% of Earth's surface), largest country in the world
* **Population:** 1.216 billion people (3rd most populous, projected to surpass India and China)
* **Demographics:**
+ Multicultural with numerous ethnic groups (no dominant group)
+ 1,500-3,000 languages spoken
+ Almost evenly divided between Christians (42%) and Muslims (42%)
* **Economy:** 8th largest in the world (nominal GDP: $2.190 trillion)
* **Challenges:**
+ Poverty (50% of Sub-Saharan Africa lives on < $2/day)
+ Health issues (HIV, other diseases)
+ High illiteracy rate (36% average, varying by country)
+ Potential for cultural and religious conflicts
+ Governance difficulties due to vast size and diverse population
Here are the key facts extracted from the text, numbered and in short sentences:
**Geography and Demographics**
1. Africa is currently composed of 54 independent countries and some islands part of other European countries.
2. A unified Africa would have a territory of approximately 30 million square kilometers.
3. This would cover around 20% of the Earth's surface, making it the largest country in the world.
4. The population of a unified Africa would be approximately 1.216 billion people.
5. The demographic density would be around 36.4 people per square kilometer.
6. A unified Africa would be the third most populous country in the world, after India and China.
**Economy**
7. The nominal GDP of a unified Africa would be approximately $2.190 trillion, ranking it as the 8th economy in the world.
8. The GDP per capita would be around $1,890.
**Language and Ethnicity**
9. There are estimated to be between 1,500 and 3,000 languages spoken across the African continent.
10. The most spoken languages include Arabic, local African languages, English, French, and Portuguese.
11. Africa is one of the most multicultural continents, with numerous ethnic groups and no single dominant group.
**Religion**
12. A unified Africa would be almost equally divided between Christians (around 42%) and Muslims (around 42%).
13. Traditional African religions would represent around 10% of the population.
14. Approximately 2% of the population would be atheists.
**Natural Resources and Challenges**
15. Africa is one of the continents with the most natural resources, including diamonds, gold, silver, uranium, and oil.
16. Despite its resources, Africa is considered an extremely poor continent.
17. Around 50% of the population in Sub-Saharan Africa lives on less than $2 a day.
18. Sub-Saharan Africa has the highest number of people infected with HIV, with some countries having infection rates over 15%.
19. The illiteracy rate in Africa is around 36%, varying significantly from country to country.
**Governance and Unity**
20. The capital of a unified Africa might likely be Addis Ababa (current seat of the African Union), but this is speculative.
21. The most populous city would be Lagos, Nigeria, and the largest city economically would be Cairo, Egypt.
22. Unifying such a diverse continent would pose significant governance and cultural integration challenges.