Association About Conquering The Space

Latterly, I read less books. Actually, I read only one book which is about Elon Musk. Elon Musk is a idealism man who can give his whole life to the cause of exploration of the space. Musk made a recoverable rocket with a lower cost than China or the USA. 

I have faith in Musk and his enterprise. But I have a doubt about who will dominate the journey to conquer the space. In my opinion, Musk won't be the leader. Because the leader is not only the one who lead a company, but also the only man who lead the whole human. Why do I say like that? Because the technology which is researched and developed for and by the exploration of the space can be mostly put into use on the earth. Like the meteorological satellites, these satellites are used for detecting how the agriculture is and have solved many problems about the hunger. And these researches must be a huge cost. For the cost of the researches can't be stable. The most important problem is, some technology is only mastered by a country, like the nuclear fusion. And the future of space exploration must be led by the nuclear fusion.