I graduated with a master's degree (geophysics) in June this year. I thought that after studying for so many years, I wanted to change my life and work for a year or two before studying for a Ph.D. As a result, when the oil price plummeted, I invested in CGG, Schlumberger, and Total, but nothing happened. Later, I talked with the teachers who took the class. Many of the teachers who took the class were seniors in large companies. They unanimously suggested that when you are in a trough, it is suitable to study for a Ph.D. On the one hand, you can get through this trough period, and on the other hand, you can continue studying for a Ph.D. Improve yourself and you may catch up with the oil recovery period when you graduate in the future. Having said that, if the price of oil does not go back up, it will still be difficult to find a job. However, the low price of oil is also a bad sign of the world's overall economy. Supply exceeds demand. The oil industry is hard to find, and other industries are also not good. Among them, the teachers at Schlumberger are very optimistic about their R&D center. During the crisis, small companies stopped R&D, but large companies still have some strength and can continue to expand their technological advantages. For example: for shell teachers, their R&D center continues to recruit. A senior brother is going to their R&D center in the Netherlands. Because he is a student from the United States, he is recommended to go to Houston for an internship; although total has also laid off employees, the core RD continues to research and develop; I last year For my master's program, Schlumberger provided five internship opportunities this year, three in London and two in Cambridge. Total also provided two internships, and CGG also provided an opportunity. When it comes to finding a job, although there are further layoffs, there are also new recruitments. CGG continues to recruit in Singapore, and a senior brother of mine has just got a job in the R&D department of Saudi Aramco in Beijing. In short, people have to adapt to society and the general environment. Just improve yourself. You can do any job in the future. Ability is not an issue. Nothing is necessarily a sunk cost. Even if you can change careers, the "colleagues" in the office regard studying for a Ph.D. as a job (it is indeed a job, after you sign a work contract, and the school pays unemployment insurance, pension insurance and medical insurance), some of them go to high school after graduation. Some have become teachers, and some who have just graduated have gone to the European Patent Office (the job content is related to geophysics). Some continue to work in oil companies, and some have worked as engineers in Total for three years and returned to study for a Ph.D. this year. Therefore, there is no scenery in life. Just do one thing, get a Ph.D., and concentrate on doing it well. Even if you graduate, you don’t have to worry too much. No one can predict the background. You can only be yourself and be prepared at all times. Ability to adapt to society at any time. So, I think, when I am at the bottom, I will seriously study for a PhD. After three years, I will still have a PhD, and I will also write some programs. If it doesn’t work, I will also know English and French, and I will always have a decent life in the future.