how many different bitcoins are there, Knowledge graph

Guotai Junan: The rise of leading enterprises and the downward shift of costs are important features of the steel industry entering a new cycle. Guotai Junan issued a document saying that with the change of demand structure, the demand for plates has steadily increased, and the demand for high-end plates such as automobiles, household appliances, shipbuilding, offshore engineering and energy is strong. The added value and profit per ton of products brought by leading companies' active adjustment of product structure, accumulation of products, R&D drive, continuous capital expenditure and equipment investment have been significantly improved, gradually widening the gap with the industry average gross profit. When the industry is facing the marginal losses of most steel enterprises, leading companies still maintain a high profit level by relying on the cost advantages brought by product differences and management, and the rise and differentiation of industry leaders are emerging. On the other hand, with the gradual increase in the supply side and the difficulty in improving the demand side, iron ore has gradually entered a loose cycle, and the steel cost constraints are expected to gradually improve.Rio Tinto will invest $2.5 billion to develop a new lithium mine in Argentina, and Rio Tinto Group plans to invest $2.5 billion to develop a new lithium mine in Argentina, which is a victory for Argentine President Javier Millay, who is trying to loosen the control of the economy and attract foreign investment. The British company said in an announcement on Thursday that it plans to build a processing plant with an annual output of 60,000 tons of lithium carbonate in Rincon mine. Subject to permission, the construction of the facility will begin in the middle of next year.Japanese Finance Minister Katsunobu Kato: The Mitsubishi UFJ incident is under investigation. Note: Previously, Japan's Financial Services Agency will order Mitsubishi UFJ Bank to prepare a report on a series of safe theft by a former employee.

BlackRock suggested that investors should consider allocating up to 2% in Bitcoin. BlackRock, an asset management company, reported that interested investors are advised to consider allocating up to 2% of their portfolio in Bitcoin. "We believe that investors with proper management ability and risk tolerance have reason to include Bitcoin in multi-asset portfolios," BlackRock's four-member senior management team pointed out in the report. Team members include Samara Cohen, Chief Investment Officer of ETF, and Paul Henderson, Senior Portfolio Strategist of BlackRock Investment Institute.The yield of major inter-bank interest rate bonds generally declined at the beginning of the session, and the yield of 10-year treasury bonds "24 interest-bearing treasury bonds 11" fell by 0.5bp to 1.8030%, hitting a record low; The yield of 10-year CDB "24 CDB 15" decreased by 2.25bp to 1.86%, and the yield of 30-year Treasury bond "24 Special Treasury Bond 06" decreased by 2.25bp to 2.02%.Morgan Stanley called concerns about South Korean financial stocks "excessive". Morgan Stanley said that recent political developments have hit South Korean financial stocks particularly hard because people are worried that reform efforts may be delayed and the risk of tightening supervision.

People's Daily: Ensure that artificial intelligence is always a "friend". At present, the ability of artificial intelligence is comparable to that of human brain in many aspects, but it cannot accurately distinguish right from wrong in terms of value. This means that it is necessary to strengthen the supervision and regulation of artificial intelligence from many aspects. In recent years, many countries, including China, have introduced artificial intelligence development plans, management methods and supervision principles, precisely to ensure that technology truly serves people and benefits society. No matter how far artificial intelligence develops, it all comes from human design and is an extension of human wisdom. Artificial intelligence is doing more and more work and becoming more and more intelligent. We must take precautions to ensure that it is always a "friend".This year's performance is the worst since the epidemic, and Starbucks will reduce the salary increase for its employees. An internal document shows that in view of the company's worst financial performance since the epidemic, Starbucks will reduce the salary increase for its coffee shop employees. According to different qualifications, this year's salary increase is generally between 2% and 3%, while last year's salary increase was at least 3%, and employees who have served for five years or more were at least 5%. The salary increase will take effect on December 30, and employees will see the change of payroll on January 10 or January 17.Ministry of National Defense: There is no need for the Japanese side to be frightened. On the morning of December 13th, Senior Colonel Wu Qian, director of the Information Bureau of the Ministry of National Defense and spokesman of the Ministry of National Defense, released news about the recent military-related issues. Reporter: Japanese Prime Minister Shi Pomao recently delivered a policy address, saying that the current international order is facing major challenges. Chinese aircraft carriers sail in the waters close to Japan's territorial waters, and carrier-based aircraft have conducted thousands of take-off and landing trainings in the Pacific Ocean; Based on the national security strategy, Japan will greatly strengthen its defense forces. What is China's comment on this? Wu Qian: The so-called "China military threat" was hyped by the Japanese side only to cover up its usual trick of getting rid of the shackles of the peaceful constitution and returning to the old road of military expansion. As a matter of fact, the diplomatic and defense departments of China and Japan have been maintaining communication on air and sea security issues. There is absolutely no need for the Japanese side to be jittery and nervous. The publication of these data just proves that the Japanese side has been tracking, monitoring and interfering with Chinese ships and aircraft at close range for a long time, endangering the safety of Chinese ships and aircraft and easily causing sea and air safety problems. In recent years, despite the opposition of the international community, Japan has gone further and further on the road of military expansion, which has aroused strong concern among neighboring countries and the international community. We urge Japan to draw lessons from history, be cautious in the field of military security and do more things that are conducive to maintaining regional peace and stability. China is willing to continue to maintain communication with Japan on properly handling air and sea emergencies, and hopes that Japan will move in the same direction with China, take the overall situation into consideration, take the right path, and jointly safeguard the stability of the air and sea situation and the overall situation of Sino-Japanese relations.