方舟子作为一位知名的科普作家和持续关注社会问题的公众人物，他之所以知道那么多，有几个原因可以解释。

首先，方舟子具备较高的学术背景和广泛的知识储备。他拥有博士学位，并在科学领域深耕多年。通过系统的学习和研究，方舟子积累了丰富的知识，包括自然科学、社会科学以及人文学科等各个领域。因此，他具备对于许多专业性问题的深入了解和解释能力。

Firstly, Fang Zhouzi has a strong academic background and extensive knowledge. He holds a doctoral degree and has been deeply involved in the field of science for many years. Through systematic learning and research, Fang Zhouzi has accumulated a wealth of knowledge in various fields, including natural sciences, social sciences, and humanities. Therefore, he possesses a deep understanding and the ability to explain many specialized issues.

其次，方舟子长期从事科普写作和社会观察，通过与各行各业的人们交流和互动，他积累了大量实际经验和案例。这使得他对于社会问题的理解更加全面和深入。方舟子善于从大众关心的现象出发，剖析其中的原因和机制，向公众传递科学知识，让人们更好地理解和应对社会中的种种现象。

Secondly, Fang Zhouzi has been engaged in popular science writing and social observation for a long time. Through communication and interaction with people from all walks of life, he has accumulated a wealth of practical experience and cases. This enables him to have a more comprehensive and in-depth understanding of social issues. Fang Zhouzi is adept at analyzing the causes and mechanisms behind phenomena that are of public concern, and he conveys scientific knowledge to the public in order to help people better understand and respond to various phenomena in society.

此外，方舟子善于获取和分析信息。他通过阅读大量的学术文献、新闻报道和社交媒体等渠道，不断获取各种信息，并经过深入思考和比较分析，得出独到的观点和结论。方舟子善于运用科学方法，辨别真假，及时纠正错误的观点和迷信现象，从而减少了公众受误导的可能性。

Furthermore, Fang Zhouzi is skilled at acquiring and analyzing information. He constantly gathers various information through reading numerous academic papers, news reports, and social media. After deep thinking and comparative analysis, he comes up with unique viewpoints and conclusions. Fang Zhouzi is proficient in using scientific methods to distinguish between truth and falsehood, correcting erroneous views and debunking superstitious phenomena in a timely manner, thereby reducing the possibility of misleading the public.

总的来说，方舟子之所以知道那么多，是因为他具备较高的学术素养和广博的知识储备，长期从事科普写作和社会观察，善于获取和分析信息。他的努力和坚持不懈使得他成为了一个客观公正、富有洞察力的知识传播者，为公众提供了许多有益的信息和观点。

In conclusion, the reasons why Fang Zhouzi knows so much are due to his high academic literacy and extensive knowledge, long-term engagement in popular science writing and social observation, as well as his ability to acquire and analyze information. His efforts and perseverance have made him an objective, insightful knowledge disseminator, providing the public with valuable information and viewpoints.

注释：

1. 方舟子 - Fang Zhouzi

2. 科普作家 - popular science writer

3. 社会问题 - social issues

4. 知识储备 - knowledge reserve

5. 专业性问题 - specialized issues

6. 学术背景 - academic background

7. 科学领域 - field of science

8. 自然科学 - natural sciences

9. 社会科学 - social sciences

10. 人文学科 - humanities

11. 实际经验 - practical experience

12. 分析信息 - analyze information

13. 学术文献 - academic papers

14. 比较分析 - comparative analysis

15. 迷信现象 - superstitious phenomena

16. 知识传播者 - knowledge disseminator