What is DeFi?

Decentralized Finance Explained: What is DeFi?

DeFi is a buzzword these days, but what is DeFi and Decentralized Finance? And what does it actually mean? If it’s decentralised, where is your money stored? Who is making sure the system is functioning correctly, and how is it safe if no single authority is guarding it?

In this beginners guide to DeFi, we will explain what is DeFi? Plus help you get a better understanding of the future of our financial system and how it may effect you.

Decentralized Finance Explained: What is DeFi?

What is DeFi?

What is Decentralized Finance

Defi is short for decentralised finance.  Now we’re all familiar with centralised finance or CEFI without actually realising that’s what we’re using and this is where a central authority (such as the government or a bank) controls the flow of money and makes decisions about it.

These authorities can do whatever they want with your money: they can print more money, which will consequently bring the value down, or they can stop you from borrowing. These authorities can even restrict access to your funds at any time by freezing your bank account, which happens to millions of people each year.

The traditional, centralised finance system is also expensive to use, especially if you consider credit card rates or personal or payday loans where rates can be as high as 500%. These rates are high because of two main reasons: firstly, the bank employs workers, and their salaries come from the interests that you pay on your loans, and secondly, you don’t have access to any other financing options. If you want a loan for your house or your car, you are bound to go to a bank in your country for financing.

Now, what if I told you there was a cheaper, more accessible option where no banks or governments are involved. An option where you could borrow money for lower interest rates regardless of whether you’re 18 or 65 years old. This option is called Decentralized Finance or DEFI.

Decentralised finance is an emerging finance ecosystem that does not require any supervision to function. With decentralised finance, there is just a piece of open-source code that runs and acts as a bank, accessible by anyone. Plus, since these DeFi institutions hire zero employees, they are automatically a far cheaper alternative to centralised finance. Think of it as a bank on autopilot!  

The Defi ecosystem has three main foundational aspects: Cryptography, Blockchain technology, and Smart Contracts, which we’ll cover in other explainer posts.

DEFI Fundamentals

Below are the main fundamentals that build up Decentralised Finance.

Stablecoins

Let’s start with stable coins. Stable coins such as USDT, DAI or USDC act as a bridge between the world of centralised and decentralised finance. They are pegged 1 to 1 to the US Dollar and are used to convert your fiat currency to cryptocurrency or vice versa. 

When you buy one unit of stablecoin for a dollar, a new USD coin is minted. Similarly, when you withdraw your crypto gains to a fiat currency, the equivalent USD coins are burned, maintaining the demand and supply balance so that one stablecoin is always worth one US Dollar.

Say you bought crypto-like Solana when it was $10, but now it’s worth $200, and you want to sell and withdraw your profits to your fiat bank account. You would be required to use a centralised exchange like Coinbase, KuCoin or Gemini, and no stablecoins will be involved in the transaction. 

What are stablecoins

However, because they’re centralised, they’ll be charging you a fee for doing so, because they hire people who need to be paid and essentially need to run a business. Also, since you are withdrawing the money to your bank account (depending on your location), you may be liable to pay taxes on your profits.

Another issue with centralised exchanges is that they can take a few days to transfer the money to your bank account, and if you’re in a rush to buy or collect your gains, this isn’t ideal.

Suppose you decide to hold your profits in a stable coin like the USDT or DAI. In that case, you will be able to purchase crypto later without incurring deposit fees every time. You will only be charged a small transaction fee (at anywhere from around 0.1%) when you convert your stable coins to the crypto you want to buy.

Another advantage of using a decentralised exchange is that your account can never be hacked, nor your money can be taken by the government, which has happened in the past with some centralised crypto exchanges. 

With a DEX, your money will only move from wallet to wallet. There is no central reserve of funds and hence no chance for hackers to hack those reserves. Also, suppose you are planning on HODLing crypto tokens. In that case, I recommend checking out deals for hardware wallets in the description below.

Another advantage of decentralised exchanges is speed. When moving big chunks of money, a bank representative will call you to verify if you are making the transaction. Or, if you are performing an online transaction, you will have to add a beneficiary first to your account; your bank will then send you an OTP which you enter on your screen. Once a beneficiary is successfully added, you can perform the transaction and get another OTP to complete the transaction. Could it be more inconvenient?

Instead, by using stable coins, you can simply move millions of dollars from one location or address to another in a matter of minutes. It’s extremely simple and fast!

Lending & Borrowing

When borrowing from your local banks, you can get humiliated by the bank representatives if you cannot pay the money back on time. They might come to your house or charge you extra interest or possibly even jail you if you fail to pay your specified repayment on time.

When borrowing with crypto lending sites like Aave, your identity remains anonymous, and the only consequences you might face are getting your assets liquidated. Smartphones have allowed us to stay connected with our friends and family on social platforms without the need to meet them. Smart contracts have allowed us to lend our funds to borrowers on interest while keeping full custody of it.

Suppose someone wants to earn interest on their crypto. In that case, they can deposit it into the smart contract of crypto lending platforms such as Aave or Compound. Once deposited, the smart contract will give you A or C tokens which you can use any time to get back the money you have deposited into the contract plus the interest you have earned on your deposit. 

Once deposited, the smart contract goes out and finds people that want to borrow money and release your money to them with an interest rate. When you want to withdraw, you will just exchange your A or C tokens for your deposit in the smart contract. 

Like codes on a website that run automatically, smart contracts are pieces of code that run without any human interaction or supervision. If a specific condition is met, smart contracts will carry out the necessary functions that your local loan officer does.

What is a Crypto Loan

To ensure that you never lose your money, these crypto banks over collateralise your loans. This means that the borrowers need to deposit a higher amount of collateral than the loan they are applying for. This is done to ensure that lenders keep their investments safe and earn interest on them.

But you might ask: Louise, what is the point of a loan if you have to deposit collateral of a higher amount than you actually want to borrow? Well, with over collateralised crypto loans, you do not need to sell your crypto, which you think might go big one day. You can take a loan, use that money where you want to, and give it back when your financial situation is better. So crypto loans allow you to keep your crypto investments safe in the long run.

An extremely unique concept in the crypto lending circle is flash loans. These loans last for a flash second and give you the chance to make a quick buck. For example, if you could buy Ethereum for $10 on Coinbase and then sell it for $11 on Gemini, you can literally make an extra dollar by buying from one marketplace and selling on another. 

You can potentially make millions of dollars with a flash loan by buying from one exchange and selling on another. The best part of flash loans: you are not even required to put any money down as collateral. If you are unable to complete all the transactions in under 10 seconds, the money will never leave the bank. However, if you can make the trades on both exchanges and return the funds to the smart contract in under 10 seconds, you would have made 1 million dollars. All that is required now is to pay a small fee to the bank for borrowing, and you can keep the rest.

Now we understand this is an advanced method of borrowing in the world of Defi. Still, you couldn’t have imagined earning money like this in the centralised finance ecosystem. 

Decentralised Exchanges DEXes

The next part is decentralised exchanges or DEXes such as UniSwap and 1Inch, which we have already discussed, but this is where you can exchange one cryptocurrency for another. In the world of traditional finance, when you want to send your USDs to India, for example, you must pay hefty foreign exchange fees, which can go as high as 20%.

Fees are incredibly low when trading from one cryptocurrency to another using a decentralised exchange. DEXes work in a way that investors pool their money together, and then traders can trade that money. The fee of every trade goes back to those investors, and it’s all written in code, so it doesn’t change.

Decentralised exchanges also give exposure to far more tokens and coins. With centralised exchanges, tokens are added to a list once they reach specific regulations. However, decentralised exchanges can hold hundreds or thousands because a single body doesn’t regulate them. 

UniSwap Version 3 Update

Insurance

With something like home insurance, you pay an amount every month or year to protect your home. The insurance company runs some numbers and determines a premium for you based on their data.

With decentralised finance, smart contracts become the insurance company. For example, if a farmer buys insurance through a smart contract for his crop, and his crop dies due to high temperature, the smart contract will repay him. The smart code knows the temperature by connecting the real world to the blockchain using something called Oracles, which are the topic for another video. The smart contract knows the temperature limit. Once that limit is reached, the contract will automatically release insurance money to the farmer. Cool, isn’t it?

In this example, an Oracle is created to read temperatures of the real world and is verified by humans that are an expert in this. The smart contract then uses this as the data for monitoring the insurance policy for the farmer.

The money paid to the farmer in this example will come from other people who are also buying insurance. Or perhaps with investors who want to earn money by lending their money to the insurance company. 

Margin Trading

Margin trading is a great way for traders to maximise their gains. When trading with margin within centralised finance, you must first prove who you are and complete KYC as known as “Know Your Customer“, then you borrow funds from an exchange or lending platform to invest more than you currently hold in your wallet. This is so that you can open larger positions to maximise your profits. 

Usually, this means depositing funds onto an exchange that is then used as collateral by the exchange.  As part of your margin trade, you will be charged interest fees and transaction fees which can cut into your profits.

In the world of decentralised finance, Margin trading will differ between platforms, but the platforms you can perform margin trading on including the likes of DYDX, where users can trade with up to 5x leverage using their own funds as collateral. Margin trading is anonymous, accessible to anyone with money; although the users are likely to need to pay interest and transaction costs, these will be a lot lower than centralised exchanges.

Tips for Crypto Margin Trading

Governance

There is an increase in the number of decentralised autonomous organisations, also known as DAOs. This is where smart contracts will manage the Governance of a company. So instead of having the likes of board members, instead decisions are made by the community who will vote. A few companies, including Shapeshift and 1inch, are or are becoming entirely run by the community.

Conclusion

As you can see, there is a lot of value to DeFi, which is why so many investors are taking out their billions from traditional finance and putting it into this new technology. 2022 will see a lot of investment into DeFi, and if you are looking to make money, Defi offers a lot of potential. 

To find out more about the world of crypto, please check out our new series of Explainer videos on YouTube. 

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