How science responds to life challenges
The course of our lives has been challenged, many of which come from diseases, among which three types of diseases have a lot to do with human beings.
The first is cardiovascular disease. Studies have found that the low-density lipoproteins that cause cardiovascular plaques and receptors will be endocytosed after being endocytosed. After endocytosis, the low-density fat particles will be degraded, and the receptors will return to the cell surface to regenerate. To pull the new low-density lipoprotein into the cell, thereby reducing the harmful low-density lipoprotein to the human body. In 1985, Goldstein and Brown, two scientists (also the post-doctoral supervisor of Wang Xiaodong present), won the Nobel Prize in Physiology or Medicine for discovering the receptor for low-density lipoprotein.
The second thing we talk about is the new dawn of cancer treatment, which is the "immunotherapy" that you have heard many times. The most famous example of this immunotherapy was on August 20, 2015. Former US President Carter announced to everyone who cared about him that he had advanced melanoma, and there were already 4 2mm tumors in the brain at that time. Here, it has spread, and he thinks he has run out of time. However, just 3 months later, on December 6, 2015, he appeared in front of everyone again, telling people that through molecular therapy, the 4 tumors in his brain had been completely lost.
The third is neurodegenerative diseases. It is a pity that human beings do not know the cause of the disease at all. Although I can tell you a lot of theories, data and practice, we only know what the disease is about. Today, 47 million people in the world suffer from this disease. It is estimated that in 2050, a new patient will appear every 3 seconds, and we will have more than 130 million people suffering from it.
Cognitive life has limits
I gave examples of cardiovascular disease, cancer, Alzheimer’s disease, and finally transitioned to the brain. Don't say that we don't know the cause of Alzheimer's disease. We also don't know much about such a mysterious organ as the brain. We can basically say that we don't know anything. Although we have a very good learning and memory model, we can simulate the process of learning and memory, but is it true? We really don’t know.
I even think that the nerve impulse potential recorded by our electrical signals is just a representation, not necessarily the essence of learning and memory. Why? Because we are indeed such a biological human being, a bunch of atomic humans who understand life.
But in spite of this, we still have to think about it, in this world, the super micro world determines the micro world, and the micro world determines the macro world. What are we human beings? Human beings are individuals in the macro world, so our essence must be determined by the micro world, and then by the super micro world. I have no doubt that I am a Schrödinger equation, a life form, and an energy form, but I don’t know how to solve this equation, I don’t know how thinking arises, nothing more. I believe, and you should also believe that each of us is not only made up of a bunch of atoms, but a bunch of particles.
So is it science for the blind to know the world like an elephant? It must be science. What everyone touches is real, and they all exist objectively, they are visible and tangible, and so are we now. It's just that we don't know if we touched the elephant's back, tail, or ears. I think the limit of human cognition is that we are a bunch of atoms, we are in the macro world, but we want to see the super micro world through two worlds. It is the most beautiful and extremely wonderful world.