What are the most popular concepts such as web3.0 and NFT nowadays?
In fact, they all have the same technology behind them: blockchain.
Everyone is relatively clear about what blockchain is. It is an encrypted distributed accounting technology.
It sounds like it has something to do with finance.
Yes, to put it simply, it is to use technology to realize the functions of the bank.
For example, when we deposit a sum of money in the bank, it is actually just a string of numbers on our bank card.
When we want to transfer money to someone else, the bank actually only needs to do two things, subtract a number from my account and add a number to the other party's account.
However, the bank's method is centralized, that is, all changes to the account are recorded once on the bank's server. So what if there is a problem with this server? What if someone at the bank changed the numbers?
These are all possible, or have a criminal record. We often hear that the president of a certain bank embezzled public funds. This is what it means.
As for the blockchain method, every account change will be recorded on many, many machines. It is the so-called distributed and decentralized. At this time, two problems can be avoided. The first problem is that any server is down and the record does not exist. I have stored it on many servers. Losing one copy has no impact. The second problem is tamper resistance. You can modify the record on a certain server, but you cannot contact each server one by one to modify the record because the cost is very high.
This is the so-called encrypted distributed accounting technology of blockchain.
The distributed accounting of blockchain requires a large number of servers on the network to participate in recording, so why are those servers willing to record for you for free?
This may involve Bitcoin, which most people are most familiar with.
Bitcoin is a reward in blockchain technology for servers that participate in recording together. In the accounting technology of blockchain, the data sent to each server includes not only the transfers to be recorded, but also some tokens used for rewards, which are Bitcoins.
Well, because of Bitcoin, everyone is willing to participate in accounting, and accounting authority has become a scarce resource. Who should keep it?
At this time, a competition mechanism was introduced, that is, each server competes to see who has a greater workload, and Bitcoins are given to whomever.
The competition of workload is actually the competition of service computing power, which is what we often hear about mining.
At present, the decentralization, non-tampering, and reward mechanism of blockchain are most widely used in the financial field. To be precise, what work is it most suitable for? Confirm authority!
This is related to our today’s topic web3.0 and NFT.
What is web3.0? Since it is 3.0, then there are 1.0 and 2.0.
Web1.0 is the earliest form of the Internet. Sohu and NetEase mean that most of our users are viewers and can understand information. The Internet at this time is similar to the earliest TV, except that there is one more user to obtain information. medium.
Web2.0 is our current form of the Internet, with the rise of Weibo, WeChat, Douyin and Kuaishou, and various self-media. Most of our users can not only be viewers, but also content users. Creators can publish their own articles, videos, etc.
But there is a question. Does the content we publish belong to us or to the platform?
In fact, in the final analysis, it still belongs to the platform, because the content we create attracts traffic, and the platform obtains advertising fees, which may not be distributed to the author, and the platform has the right to review our content and even delete it. .
So what will web3.0 look like in the future? On the basis of web 2.0, we can consume content, create content, own content, and have our own rights and benefits. Rather than everything being determined by the platform.
So how to achieve it? Through blockchain technology, all my creations will be recorded on the blockchain, and as the value of these creations increases, I can receive dividends from the appreciation of the creations.
So what is NFT? NFT is called Non-Fungible Token in English and "non-fungible token" in Chinese.
To put it simply, it is a way to confirm rights, and it is traceable.
For example, after the author creates some works of art, they may change hands several times through many people. As the author’s reputation increases, the value of these works of art increases, and those who purchase the works gain access to the art. The benefits of appreciation in value are not necessarily the same for the author, because after the initial transaction, the artworks you created have nothing to do with you.
However, if you convert these artworks into digital assets and have a record in the digital world, then using NFT technology, you can set some rules, such as every transaction must be given to the source. That person, points 10. Then all subsequent transaction chains are related to the author.
But now, NFT technology can be used to confirm rights and trace sources, but it is not yet able to prevent counterfeiting. Even in the digital world, for example, we can copy and paste a painting and use it.
Therefore, we can only make some guesses as to what else the tamper-proof features of blockchain technology can be used for and how they will be used in the future.
We often say that history is a little girl who can be dressed up by anyone. Why is this so?
Because we currently have no way to restore history, we can only complete the history through clues and our own reasoning or imagination.
If we enter the metaverse in the future, based on blockchain technology, I guess history can be completely recorded and restored.
Exercise record:
Day 37/300, skipping rope 300
Day 3/30, swimming for 40 minutes