Reflections on the method of reading construction

is 1,ios developed in a single programming language or can it be mixed in several languages?
2, like our small white team, more suited to the 10 kinds of team mode?
3, how to do the demand analysis when developing new projects with blank market?
4, feel that they have lived for 20 years did not want to come out what can change the world's popularity of the long-lasting good idea, not to realize, even the idea has not thought out, some know that there will be some attractive but only short-lived things, it is necessary to achieve it? How can you broaden your mind, improve your creativity, and spark your inspiration?
5, the emergence of smart phones to bring convenience to people's lives at the same time also brought the negative impact of the non-negligible, blindly pursuit of intelligent information easy to lazy, always want to realize their own personal value, have not considered such a world such a life will have any impact on human long-term development, always want to use code to change the world, Is it really good for us?

Reflections on the method of reading construction