What are the research directions of cancer in the future?

Cancer treatment has become a difficult problem in modern medicine, which is not false. At present, under the human science and technology, cancer diseases are basically incurable diseases. At present, medicine only helps to slow down the injury of diseases in various ways, and there is no thorough and effective treatment. For future cancer treatment. As far as the latest technology is concerned, "nano-robot medical treatment" should be expected to take the lead in becoming "the first truly effective cancer treatment means" within 30 to 50 years. Because today's technology can control machines with human brain consciousness, nano-robots can destroy harmful cells and viruses in patients like the army ... those sci-fi fantasies are expected to come true. The era of truly accurate "targeted therapy" has really begun.