Huang Zheng resigns as chairman of Pinduoduo and will invest in scientific research
Every newsletter on March 17th, Pinduoduo confirmed to reporters that the board of directors has approved Huang Zheng’s resignation as chairman. The current chairman is taken over by co-founder and current CEO Chen Lei. Huang Zheng has issued a 2021 shareholder letter announcing the matter, and said: After resigning as chairman, he will more combine his lifelong interests and devote himself to research in the fields of food science and life science. On the same day, Pinduoduo released its fourth quarter and full-year financial reports for 2020. As of the end of 2020, Pinduoduo had 788.4 million active buyers for many years. The platform added 57.1 million active buyers in the fourth quarter, and the cumulative number of new active buyers last year exceeded 200 million.
Last night, Pinduoduo founder Huang Zheng announced in the 2021 shareholder letter that he will resign as the chairman of Pinduoduo and be succeeded by the current CEO Chen Lei. In the letter, Huang Zheng stated that after retiring, he “want to do some research in the fields of food science and life science.” Judging from the letter to shareholders, Huang Zheng has set his future goals to “qualitatively increase the added value of agricultural products, and qualitatively increase the level of physical health.” As for what can be done to achieve this goal, he raised three questions, roughly as follows: 1. Can the content of harmful heavy metals in agricultural products be effectively controlled while increasing the level of beneficial trace elements (and vitamins); 2. Can the supply be more stable? Healthy vegetable protein “Vegetarian 2.0”; 3. Continuing the 2016 Nobel Prize achievement “Molecular Robot” research, can protein robots be developed to dredge human brain blood vessels? Guo Husk tried to answer three scientific questions. By controlling the methods of the cultivation process of agricultural products, is it possible for us to reliably and effectively control the content of potentially harmful heavy metals in potatoes, sweet potatoes, tomatoes, etc., and at the same time control and standardize the potentially beneficial trace elements The promotion? If there is a kind of tomato in the future, each one contains VC and other trace elements that are most suitable for our body, will our quality of life be significantly improved? Controlling the content of heavy metals in agricultural products has always been a goal in the agricultural field, and so far there have been a lot of exploration results. The reason is very simple, as long as there is no heavy metal in the plant growth substrate, or the heavy metal content is in a low concentration range. The simplest way is to prepare a bottle of nutrient solution without heavy metals in it, and the crops grown in this bottle will naturally have no heavy metals. The difficulty is that my country’s agricultural production is mainly carried out in large fields. It is impossible to accurately control the soil substrate of 1.8 billion mu of farmland, so it is objectively difficult in practice. Reducing heavy metal pollution in the soil requires soil remediation, which is also one of the current research hotspots; there are many specific remediation methods, including physical remediation, chemical remediation, biological remediation, and so on. So, can you increase the beneficial trace elements (and vitamins and other nutrients) in tomatoes, potatoes, and sweet potatoes? Nutritionist Gu Zhongyi said in an interview with Guo Husk: “If vitamins can be increased, it is generally a good thing. However, more vitamins are not the better. Some vitamins can also bring risks if you consume too much.” In addition, each person’s nutrient requirements and food intake are different, so it is difficult to say “what value level of vitamin C in a certain fruit and vegetable is the best for the human body.” “There is a possibility, such as the current Chinese The proportion of insufficient dietary fiber, vitamin B1, vitamin B2, and calcium intake is very high. If some techniques can be used to increase the content of these inadequate nutrients in some cheap food materials, the advantages outweigh the disadvantages.” Gu Zhongyi added this way. Tao. If we can more thoroughly understand the changes and effects of different plant proteins and animal proteins after ingestion in the human body, and then synthesize and produce meat substitutes through plant proteins, then whether this new vegetarian chicken 2.0 is likely to become more Healthy, greener and stable supply? possible. Various biotech start-ups have come up with a variety of “artificial meat” manufacturing solutions. One is “growing animal meat in a petri dish”, which utilizes the potential of animal stem cells used for meat to develop into cell tissue; the other is “making plant protein eat like meat”, that is, “Vegetarian Chicken 2.0” as Huang Zheng said. “. “Plant protein meat” contains almost no cholesterol and saturated fat, which can be said to be its advantage. Walter Willett, professor of nutrition and epidemiology at Harvard University, once said that replacing red meat with plant protein can reduce the risk of cardiovascular disease. However, the shortcomings of vegetable protein meat must also be considered: the absorption rate is low, the type and quantity of protein provided are far from what the human body needs, and the energy density and food thermal effect are not as good as animal meat. Another type of “artificial meat that really resembles meat” is still expensive to produce, and the taste is not yet satisfactory. However, this industry is also developing rapidly, and the cost and taste will be further optimized. And, artificial meat is really more environmentally friendly and greener than traditional meat: it hardly needs to occupy land resources, uses 82-96% less water, and reduces greenhouse gas emissions by 78-98%. If we go further and delve into the study of protein structure and properties in the human body, is it possible for us to follow the path of the molecular machine of the 2016 Nobel Prize winner in chemistry and further develop protein robots that can enter the human brain? To dredge the blood vessels to avoid stroke? Here we must first explain one point: Medically speaking, appropriate intravenous thrombolysis is the most effective drug treatment method for improving the outcome of acute ischemic stroke; one of the main difficulties is that most patients are not delivered to the hospital in time or for various reasons Delay in the hospital. It is conceivable that even with medical micro-robots, patients still have to face similar dilemmas. The concept of “micro-medical robots” appeared very early. In the American sci-fi movie “Magic Journey” released in 1966, several doctors used a shrinking device to shrink the submarine to the size of red blood cells and send it into the patient’s cerebral blood vessels to remove blood clots. However, the 2016 Nobel Prize achievement “rotaxane molecular robot” is not suitable for rushing into the human body to act as a doctor. Molecular-level robots, especially those with protein structures, can easily cause human immune responses if they come into contact with blood. Today, a variety of biomedical micro-robots with safe performance have been born; however, due to their limited size, they are temporarily unable to integrate integrated circuits and sensors, and their exercise capabilities are also strictly limited. For this reason, scientists have come up with various driving methods, or gene-edited living cells that have the ability to move. At the same time, scientists are still trying to add artificial exoskeleton to them to enhance their “tackling” capabilities. In response to thrombosis, researchers from the Massachusetts Institute of Technology recently trial-produced a “linear micro-robot”. Its material is mainly nickel-titanium alloy, a composite magnetic induction material made of medical hydrogel and 3D printing. This kind of robot can accurately reach the thrombus position in the brain under the external manual control and guided by magnetic force. The researchers said that if the thrombus is too large or too hard, the linear robot can also be equipped with more high-tech weapons, such as thrombolytic drugs or even miniature laser transmitters.