Not delicious, sloppy eating but really, sometimes when I’m not around the office during lunch time, I still remember that industrial spring roll strangely. It’s not that eating a lot becomes a habit, but perhaps because of that spring rolls, it reminds a lot of memories. During the days in Hanoi, also without this snack, a delicious banh gio is really the “splendid paradise” of the stomach. Especially on winter afternoons, when it’s a bit drizzly, let a hot piece of spring roll melt in your mouth. Away from Hanoi for more than 20 years, I don’t know if the “guerrilla” banh mi shop at the corner of Tran Xuan Soan – Ngo Thi Nham intersection, near Hom market, is still for sale or not. Once upon a time, it was our snack mecca, literally. In the afternoon, despite the hustle and bustle of people, we young people stopped by, kicked the car against the car, “pleased her for a cake” and sat down on a small wooden chair and sipped. Hot, fragrant cake, add a little spicy chili sauce, enough to dispel the cold of the drizzle. If the day is “sizzling”, add a piece of cinnamon rolls, it’s really delicious, not only at the level of “warm hearts of soldiers” anymore. By the time he entered the south to set up a business, at first, many times when he wanted to eat spring rolls, he was exhausted. But it’s hard to find a banh gio in the right style of Hom market. Then also discovered that Minh Chau spring rolls house sells delicious spring rolls, North standard. But unfortunately, in Minh Chau, only a few minutes in the morning, the spring rolls are gone. Later in the afternoon, they also sell but they sell out soon. Buying spring rolls there often turns out to be a miracle. Eating a piece of fragrant, soft, greasy, rich spring rolls, I suddenly remembered my childhood. Opposite the house, there are Mr and Mrs. Chi who specialize in selling spring rolls. Their son was the same age as us, loved like a thin egg. We still tease him: “Everybody in your family is muscular when sitting. When you stand up, your thighs are like toothpicks”. The reason there is such a joke is also because of the sight of them sitting and pounding their legs with their hands all day. Two hands swinging the pestle continuously. Working like that, biceps are not billowing. But sitting in one place forever, hands are sometimes bigger than legs. Referring to the profession of spring rolls, when it comes to banh gio, we must admit that our ancestors calculated real talent. Their basis is enough to be the standard and most basic lesson of those who do business and production in any era, any business model. The tiny spring rolls, held in the palm of the other hand, turned out to have a great meaning. It is full use. It is a product that brings added value in the whole production cycle of the people who make spring rolls. Remember the story about a teacher who filled a glass jar with gravel and asked his students, “Is the jar full?”. When the student replied “It’s closed”, the teacher poured sand into the jar again. Continue, after the sand is water. That story we certainly heard boring ears. But in this “spring roll lesson”, it’s not boring at all. The house making spring rolls will definitely use the ingredients of meat and leaves to wrap the cake. A pound of pork has a fairly large volume, with its diameter also having to be about 10cm and the length of the cylinder also having to be 20 to 25cm. So many pounds of ham put into the cooking pot, is it like a big bunch of pebbles put into a glass jar? Then in the process of wrapping the sausage, there will certainly be leftover leaves, shredded leaves, and shredded meat. And so those leftovers are used to make small, pretty spring rolls, as if sand is added in a glass jar. Then, besides banh gio, there is also a bun. The cake is also small and pretty like that, also using leftovers and scraps like that. Those superfluous, petty things can actually be sold. But surely, it will only bring the cheap value of a mere waste product. However, when combined together in the shape of a spring roll, it is placed in a new position, as solemn as the hot, fragrant pork rolls. It is in place of another product line, sold at a very different price. His father is really talented. The ingenuity of starting from good eating is full, well shuffling is warm has become a basic and acumen custom of business people. And in fact, except for industrial spring rolls production facilities, there is no heirloom sausage house that does not sell additional by-products such as spring rolls, pancakes… at all. It can be said that if they are rich by doing that job, it is not the sausage that gives them that wealth, but rather the traditional tradition that has been brought back from generation to generation. How many people peeled away a plate of spring rolls for breakfast, lunch and thought about the way that cake came out of the oven to relate to the work they are doing? It’s like the story of a young tailor I know. She never throws away the rags. But she uses it to sew beautiful doll dresses, make small key chains and sell them online. And I myself was very surprised when I heard her say “That dress you sewed for that woman, the salary is four hundred thousand. But the rags of that dress were thrown away, I made 1 doll shirt and 2 keychain. In total, I sold millions of two.” One million two versus four hundred thousand. And most importantly, that million and two come from what is considered waste. But I always believe, that girl will succeed. Not because of sewing but because of the very scientific calculation that she has. Doing business requires studying and the learning pool is huge. We will easily be eager for the new, with the modernity of the world out there, but let’s not ignore the old lessons that our forefathers have learned. Just like that spring rolls, it has opened up an extremely interesting process. It is a process of experience and not only the experience of a particular person but of many lives. That experience is as precious as any other knowledge out there, and most importantly, it’s not written into a textbook or textbook. It only opens to those who are contemplative, like to enjoy a snack with the discovery of the stories behind that no one has ever told.

According to Mr. Cong, during more than 2 months of mining Chia, the actual amount of copper received back only stopped at 3 units. Currently, on the Huobi exchange, Chia is being valued at $820. This means that after 2 months and 3 billion of capital, he earned about 56 million VND. Fear of missing out on green Bitcoin The reason given by Mr. Cong is that although Chia saves electricity, it is difficult to compete with the super mines in China. Besides, the dramatic drop in the price of cryptocurrencies in the past week also increased the payback time of Chia mines. The hard drive is what determines the success or failure of Chia mining. “I invest a lot of money but I am quite vague about my income. The reason is that I fear that I will miss the opportunity to get rich like the way Bitcoin created 4 years ago. There were very few Bitcoin miners back then, I was one of the first. That’s why I have faith in Chia. But things don’t seem to be as I thought,” Cong said. According to Mr. Cong, his Chia mining system uses a 6TB HDD. Each of these hard drives costs 6.5 million VND. The number of hard drives in Mr. Cong’s mine is close to 300. Previously, the price of HDDs was only about 2-4 million VND. However, the wave of Chia mining has made the hard drive double in price. To cope with the huge write rates of Chia miners, many memory manufacturers have designed SSDs specifically for this purpose, like TeamGroup’s T-Create Expert model with a write limit of up to 12,000 TB. Amazon Web Services also recently opened a Chia mining service for the Chinese market. Hard drives increase in price, are in short supply but still have to buy more “In the game of chia mining, whoever has the most large capacity hard drives, that person has a higher chance of winning. And the winners at this point are the mining pools in China. They buy large quantities of hard drives at very high prices to gain an advantage in the market,” said Mr. Reply Zing , a representative of GearVN store confirmed the shortage of goods with large capacity drive models. However, this company’s customers, mainly individual users, have not been affected much. Hard drive prices have doubled since April because of the green Bitcoin craze. “GearVN’s customers are mainly end users and gamers, with a demand for hard drive capacity from 1 TB to 4 TB. In this segment, the price and supply are still stable,” a GearVN representative shared. This is also considered the biggest risk when participating in the “Green Bitcoin” market. According to experts, the difficulty of Chia mining is many times faster than Bitcoin. This means that mining systems must be invested with as many hard drives as possible. Previously, Bitcoin could be mined at individual scale because of the slow increase in difficulty. In the Chinese market, many traders have gathered thousands of hard drives to redistribute to Chia miners. According to ADATA, thanks to Chia, the number of SSDs sold by this company has increased 5 times in the past month. The shortage of goods makes many manufacturers of hard drives and SSDs prioritize serving the Chinese market. Order time in other markets is 2, 3 times longer. “In the past, every time a new order was placed, the waiting time was about 4-6 weeks. Now, the waiting time must increase to 8-10 weeks, high-capacity lines can sometimes be up to 13-15 weeks. Calculated, the standby time increased 2, 3 times, “said a representative of a distributor of the Seagate hard drive brand. Despite having an advantage in power consumption, Chia has a problem with mining materials, here is the hard drive. “I have to constantly buy hard drives while the price is getting more and more expensive. Without a hard drive, we wouldn’t have a place to store the strings of codes that can form a Chia,” said Cong. Uncertain future Chia was created by Bram Cohen, the “father” of the BitTorrent peer-to-peer file transfer protocol. The company behind this currency is Chia Network, backed by investor Naval Ravikant, some well-known companies such as Andreessen Horowitz or Cypherpunk Holdings. From May 3, this currency will be publicly traded and exchanged. According to the Business Insider , Split based on PoST (proof of space and time) consensus algorithm. In it, PoS (proof of space) describes an allocated hard drive space for blockchain block storage. In other words, the “miner” Chia will reserve a certain amount of memory space on the hard drive to store blockchains. Mining is very little, but participants have to constantly buy more hard drives in order to have space to store the blockchain. They will be awarded based on the ratio of memory cells that “miners” have to store compared to the entire network, as verified by a VDF server (aka Timelord). Chia Network, the representative company, said that this currency has good security, consumes less energy than coins using the PoW (proof of work) consensus algorithm. Unlike Bitcoin, Chia has no limit on the amount of coins mined on the blockchain. Instead, the number of diggers that can be mined will change continuously depending on demand. Chia Network, the company responsible for this currency will hold 21 million Chia in order to control price fluctuations, reducing the possibility of problems. Although the future of Chia is envisioned as ideal, the coin has only been traded on a number of crypto exchanges since early May with the token XCH. At first, the price per dong has more than doubled from $700 on May 4 to $1,600. However, facing the decline of the entire cryptocurrency market, Chia also suffered a price drop. Besides, too much hard drive also makes the Chia project away from the original “green” purpose of the founders. The owner of the net shop unplugs the machine, digs coins and waits for the translation to end Due to the impact of the Covid-19 epidemic, Mr. Nguyen Minh Quan (Thu Duc City) had to close the net shop, remove the graphics card to dig coins, earn extra income waiting for the reopening of the shop.