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Blockchain 100 questions 13 episodes
Publish: 2021-04-23 19:48:18
1. Do you want to learn blockchain development technology or just want to know what blockchain is? If it is the former, you can look at the code of other blockchain projects and learn about it first. If it is the latter, we can pay attention to some good blockchain we media. Blockchain is an emerging instry. There is no ready-made training course. It depends on self exploration and understanding.
2.
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relying on blockchain technology, zero knowledge proof, code is law
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the system is planned at the beginning
@ block chain make complaints about
3. The bitcoin system can adjust the difficulty coefficient to ensure that bitcoin will not be g out too quickly
in order to ensure the stability of bitcoin and dig out a block in about 10 minutes, Nakamoto Tsung designed that the difficulty of getting bitcoin from miners mining should be dynamically adjusted every 2016 blocks (about 2 weeks). After the adjustment, the expected time for each block to be generated is 10 minutes. Now the difficulty factor is about 480ph / s. With the current computing power, the miners in the whole network need to go through about 300 trillion hash operations to find a qualified answer and generate new blocks.
in order to ensure the stability of bitcoin and dig out a block in about 10 minutes, Nakamoto Tsung designed that the difficulty of getting bitcoin from miners mining should be dynamically adjusted every 2016 blocks (about 2 weeks). After the adjustment, the expected time for each block to be generated is 10 minutes. Now the difficulty factor is about 480ph / s. With the current computing power, the miners in the whole network need to go through about 300 trillion hash operations to find a qualified answer and generate new blocks.
4. In Himalayas, Lao Wang talks about finance, which is easy to understand
5. At the beginning, I asked 100 questions about blockchain. The video explanation was very clear. After watching each episode, I would have a general understanding of blockchain. Now I will read some official account articles and block chain media websites, etc., to understand the daily information market. Some public official account has dry cargo, which teaches you all kinds of conceptual things, including the popular DAPP, and how to play and how to create wallet. You can go to see dappdiscover.
6. Learning method: pet level 15 can be used to learn
go to mop "mystery of stone" to find NPC - man with mining soul, have a dialogue, and then learn mining task. Use "test pick" in kaster plain 07, 27 and border outside mop and reply NPC - man with mining soul to complete the task, Learning mining task completion
mining method:
first use the "detection rod" to detect the location of the ore point. If the area can be mined, the bottom left corner of the screen will display the mineral resources that can be explored: X mine, you can equip the "miner's pick" and then stand still to mine
go to mop "mystery of stone" to find NPC - man with mining soul, have a dialogue, and then learn mining task. Use "test pick" in kaster plain 07, 27 and border outside mop and reply NPC - man with mining soul to complete the task, Learning mining task completion
mining method:
first use the "detection rod" to detect the location of the ore point. If the area can be mined, the bottom left corner of the screen will display the mineral resources that can be explored: X mine, you can equip the "miner's pick" and then stand still to mine
7. Blockchain is a decentralized distributed ledger database. Decentralization is different from the traditional way of centralization. There is no center, or everyone is the center; Distributed ledger data
Library means that the recording method is not only to store the ledger data in each node, but also to share and the data of the whole ledger synchronously. At the same time, blockchain also has the characteristics of disintermediation and information transparency.
Library means that the recording method is not only to store the ledger data in each node, but also to share and the data of the whole ledger synchronously. At the same time, blockchain also has the characteristics of disintermediation and information transparency.
8.
Bitcoin (abbreviated as BTC) is a point-to-point, decentralized digital asset proposed by Nakamoto (alias); In 2009, Nakamoto Cong packaged the first block and won 50 bitcoin mining awards, which are halved every four years. According to this calculation, bitcoin is expected to be issued in 2140, with a total of 21 million
do you understand what bitcoin is now? If you don't understand, just continue to look down ~ "blockchain 100 questions" makes you a blockchain brick~
9. Quantitative trading is the use of mathematics, statistics, information technology quantitative investment methods to manage the portfolio. In short, it can be divided into five steps: strategy conception, model establishment, data back testing, tuning back testing, and transaction following
stock quantitative investment model is mainly divided into two parts: risk model and multi factor stock selection model, which are used to control risk and improve returns respectively. Instry, market value and style factors are included in the risk model. The instry is not biased, market value is not biased, and style takes into account both long-term and short-term. Based on the risk model, the multi factor model covers seven categories of screening factors, including emotion, momentum, quality, valuation and other factors, as well as big data investment factors
indeed, to make a quantitative strategy, you must have a clear understanding of some basic indicators (factors). Take the fundamentals you mentioned, such as the price earnings ratio (PE). The higher the PE, the higher the valuation of the stock, and the higher the risk after buying; The lower the PE is, the more undervalued the stock valuation is and the greater the chance of rising after buying. Therefore, we can simply get a quantitative strategy of low PE, of course, this single factor strategy has great limitations, when we really do the strategy, we need to combine other factors, so that the back test results of the strategy will be more ideal, and the actual winning rate will be greater
if you are just an ordinary retail investor and want to adopt the quantitative trading system in future trading, it is necessary to learn it systematically.
stock quantitative investment model is mainly divided into two parts: risk model and multi factor stock selection model, which are used to control risk and improve returns respectively. Instry, market value and style factors are included in the risk model. The instry is not biased, market value is not biased, and style takes into account both long-term and short-term. Based on the risk model, the multi factor model covers seven categories of screening factors, including emotion, momentum, quality, valuation and other factors, as well as big data investment factors
indeed, to make a quantitative strategy, you must have a clear understanding of some basic indicators (factors). Take the fundamentals you mentioned, such as the price earnings ratio (PE). The higher the PE, the higher the valuation of the stock, and the higher the risk after buying; The lower the PE is, the more undervalued the stock valuation is and the greater the chance of rising after buying. Therefore, we can simply get a quantitative strategy of low PE, of course, this single factor strategy has great limitations, when we really do the strategy, we need to combine other factors, so that the back test results of the strategy will be more ideal, and the actual winning rate will be greater
if you are just an ordinary retail investor and want to adopt the quantitative trading system in future trading, it is necessary to learn it systematically.
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