Reasons for the trend of currency digitization
Digital money drives economic consumption. People have no concept of money, only material needs. At the same time, digitization facilitates people's communication
digital currency is a new technology, which is different from the traditional electronic payment tools used by online banking and third-party payment companies. It is developed on the basis of a series of new technologies - they are not tools to transmit money; They are money in themselves. Among them, digital currency based on cryptography is also called cryptocurrency. Bitcoin is a model of this kind of digital currency. After its birth, it inspired many similar systems. Some commercial banks and central banks have also begun to develop their own digital currency. According to the different issuers, we can divide digital currency into three types:
1. Digital currency issued by non-financial institutions
in November 2008, a man named Nakamoto Tsung invented a new technology called blockchain and designed a point-to-point e-cash system, namely bitcoin, for the first time. On January 3, 2009, Nakamoto completed the code development of bitcoin. Due to its point-to-point and electronic nature, bitcoin can be passed directly between two people without the need for a centralized settlement institution. Therefore, it is a fast, low-cost, borderless payment system
2. Digital currency issued by commercial banks
some large international financial institutions have taken a fancy to the low-cost, fast and safe characteristics of digital currency, and began to try to use its underlying technology, namely blockchain technology, to develop their own digital currency. For example, four of the world's largest banks, UBS, Deutsche Bank, Santander bank and New York Mellon bank, are already involved. Their digital currencies are similar to those mentioned above, but their issuers are different. It is particularly noteworthy that financial institutions develop digital currency to meet the needs of their own rapid clearing transactions, rather than challenge the financial situation by replacing the legal currency issued by the central bank. The domestic Puyin group also launched Puyin
3. Digital currency issued by the central bank
some central banks, such as the people's Bank of China and the Bank of England, also plan to launch their own central bank digital currency after some research on digital currency. Technically, CBDC is the same as the above two, but e to its special identity, CBDC will have a greater economic impact, which is the reason why the central bank wants to introce CBDC.
the strong current field mainly includes power system, high voltage and insulation, motor and power electronics. Last year, I had an exchange with this senior of Tsinghua University. At least in the two fields of power system and high voltage, Tsinghua University is definitely better than eth; In some fields of power electronics, ETH is strong (but Prof. Kolar of PES is retiring soon, and the level of eth is also uncertain after retiring). Let's quote a passage from a senior
in the final analysis, electrical engineering needs to rely on abundant funds and strong national strength, which is obviously beyond eth's ability to provide, In recent years, it is not new to find that the research level of foreign famous universities is not as good as that of China. As far as I've known for half a year, ETH's research level in high voltage, power system, high power power electronics, semiconctor materials, etc. is not as good as that of domestic universities, except for the small and medium power electronics of Kolar group. Even the strongest direction of power electronics is uncertain after Professor Kolar retires in a few years. On the one hand, it is because of the scale. For example, there is only one professor and more than a dozen students in eth, and there are more than 30 professors in Tsinghua. On the other hand, domestic universities have more abundant funds, resources and projects provided by the State Grid, which are more closely related to practical application. For a new topology or control strategy, ETH generally completes the simulation or small-scale experiment, and then the article is finished, but it has a good chance to apply it to the real system in China. If I just think about publishing articles and taking the academic route, I may be a better choice to stay in Tsinghua. I came to Switzerland purely because I don't like the environment in North America and China, and there are more job opportunities in Switzerland
By the end of 2020, bitcoin market is going crazy. On December 27, the price of bitcoin once exceeded US $280 million, reaching a new record high of US $28365 per coin, a new high in the market value over the past decade. Bitcoin has risen more than 233% this year. Before bitcoin broke through $20000, public opinion was in a frying pan. Now it's soaring to $28000, and it's crazy again. The total market value of bitcoin has exceeded $500 billion, which is equivalent to two universe lines, and it's more than $1 trillion higher than Maotai. Bitcoin can't eat or drink, and it doesn't create profits. It's all so valuable. What's the reason for the surge? Should we hold bitcoin