The infinite proliferation of cancer cells is limited to the proliferation without algebraic restrictions under suitable conditions. But in the final analysis, cancer cells still belong to one of human cells. 1. Human organizations are very delicate! Very delicate! I will die for you if the conditions are not suitable, so cancer cells have inherited this characteristic. If the conditions are not right, they will die. 2. Except for a few special tissue cells, most of human cells are adherent cells, and cancer cells are also poor guys with contact inhibition, which will inhibit proliferation after cell contact. Large-scale culture in liquid medium is impossible. This is the most fatal limiting factor. 3. The cancer cells are obviously dedifferentiated, and the tissue differentiation morphology is gradually lost, so they finally become a round stem cell. What's the taste of this round cell group? Is it a pile of cell suspension or a pile of broken slag ..... In summary, just think about it, it's impossible. Of course, regardless of the cost. As far as safety is concerned, eating cooked tumor tissue is raw, which is also ok for a person with normal immune system (normal immune system will not allow tumor cells or allogenic cells to colonize and survive, but of course some tumors with endocrine function should be excluded). But in terms of cost, it may not be feasible. The reason why the subject raised this question may be because of a common sense mistake, that is, tumor cells can proliferate indefinitely = tumor cells grow faster than normal tissue cells. But as far as most tumor cells are concerned, this is not true. Cell cycle can be divided into mitotic phase and interphase. The reason why tumor cells grow fast is because they break the law of cell cycle, and the interphase is short or continue to divide. But as far as cells in the same mitotic phase are concerned, the rate of division and proliferation of tumor cells is not necessarily faster than that of normal cells. For example, in the presence of some stress and stimulation factors, normal tissue cells divide and proliferate faster than tumor cells. For example, the repair of covering epithelium, growth and development period, etc.