As robots continue to evolve, we are now entering an era where they collaborate with people in manufacturing sites.
In the service sector, robots are taking over tasks that are difficult for people to do, and the areas in which robots are utilized are gradually expanding, including logistics, delivery, customer service, and cooking.
Why are intelligent robots, generative AI robots, growing so rapidly? The answer is simple.
Because people are precious.
As the 'productive population' available for work shrinks, robots are naturally taking their place.
Robots are expected to be widely used not only in manufacturing but also in new industries such as space, aviation, and defense, as well as in the service industry.
Of course, the scope of application can be expanded as needed.
--- p.15

ChatGPT is a useful learning tool that provides diverse learning materials in various formats, including text answers, code, mathematical formulas, tables, and examples, satisfying students' study preferences.
What's surprising is that ChatGPT is only just at the 'starting point'.
It remains to be seen how ChatGPT will provide more reliable information through natural language learning in the future.
As we update our knowledge and collect conversational patterns, personalized conversations with individuals will become possible, and our ability to analyze and understand various forms of data, such as images and videos, will become much more diverse than before.
--- p.41

Those who are elected form political parties and engage in political activities.
A political party is a group of people who share a political ideology, goal, or purpose.
A political party must have a certain number of members, and in our country, at least 1,000 party members are required in each of the five or more cities and provinces nationwide.
The party must also have a platform and policies that clearly state its basic ideology, goals, and policy direction.
A structure for the political party's decision-making process and organizational operation is also necessary.
Once the party leader is elected, he or she registers with the Central Election Management Committee and then informs the party of the party dues, rights and obligations of party members, decision-making, and financial management methods, and raises funds.
They exercise political influence by nominating candidates for elections, promoting policies, and communicating with party members and the public.
This group is called a 'political party'.
--- p.68

Public goods include police systems, environmental protection activities, scientific discoveries and research results, and even street lights, parks, public roads, and military defense systems.
Public goods are divided into 'substance theory' and 'process theory' depending on how they are understood and defined.
The entity theory, which views public goods as goods with specific properties, holds that public goods are non-rivalrous, meaning that one person's consumption does not interfere with the consumption of others, and that they are non-excludable, meaning that no one can be excluded from using them.
Examples include national defense, public roads, and parks.
The process theory emphasizes 'public choice', which is selected and provided by public institutions, and decisions made through interaction and negotiation among various stakeholders.
For example, medical services, education, and environmental protection programs are defined according to this process theory.
--- p.111

How do the wealthy spend their time? According to the 2024 South Korea Wealth Report, the average wealthy person sleeps about seven hours.
Sleep 30 minutes less than average.
They usually go to bed at 11:30 and wake up early to make good use of their morning time.
I eat a light meal like juice or Greek yogurt, and spend my mornings exercising, taking a walk, and checking my schedule.
I sometimes read the newspaper or watch the news while eating breakfast.
It was found that as the size of one's assets increased, the proportion of people who read newspapers and news also increased.
They were particularly interested in the economics section, and had relatively little interest in entertainment, sports, and society.
There was also a difference in the amount of reading.
While the average person reads about six books a year, the wealthy read more than ten.
It was revealed that wealthy people with financial assets of over 10 billion won read about 20 books.
For the rich, reading is a daily routine and a form of relaxation.
--- p.139

But in modern times, this tradition begins to waver.
In the 1920s, wedding dress designs became simpler and shorter.
The simple design that reaches to the knees has become popular.
In the 1930s and 1940s, weddings became more streamlined and dresses simpler due to the Great Depression and World War II.
In the 1950s, under the influence of Hollywood, glamorous and feminine designs became popular again, while in the 1960s and 1970s, under the influence of the hippie movement and free spirit, a more natural bohemian style emerged.
The 1980s saw the rise of voluminous sleeves and grand styles thanks to Princess Diana's dresses, and from the 2000s onwards, a variety of wedding dresses began to become popular, reflecting the bride's individuality and taste.
--- p.165

Joseon and Qing dynasties underwent various changes from the early 17th century to the late 19th century.
The Qing Dynasty was first founded by Nurhachi under the name of 'Later Jin'.
They expanded their power by winning the war against the Ming Dynasty, but at the same time they also experienced conflict with Joseon.
This is because Joseon swore allegiance to the Ming Dynasty.
In particular, when Joseon suffered the Imjin War, it received help from the Ming Dynasty, and the tributary relationship between the two countries became even stronger.
Because Joseon supported the Ming Dynasty, it was inevitable that it would be attacked by the Later Jin Dynasty, which is called the Byeongja Horan.
The Later Jin invaded Joseon and signed a peace treaty, which later became the cause of the Byeongja Horan.
--- p.181

The chaos and economic instability after the war led to the rise of Nazism in Germany and fascism in Italy.
The war put a financial strain on Europe, leading to an economic depression that ultimately led to the Great Depression in 1929.
The Great Depression created financial market turmoil and massive unemployment, and as Europe declined economically, the United States emerged as the world's economic and military power.
World War I significantly changed the course of world history and became a significant catalyst for international politics and social change in the 20th century.

--- p.212