What are the achievements of science and technology of the late XX – early XXI century. are, in your opinion, the most important?

Here you can enumerate various things ad infinitum, because inventions appear almost every day. The most important were probably computers whose power grew exponentially every year. Also, mobile communication has become a very big breakthrough, because it has contributed to even more dissemination of information. A lot of different discoveries in medicine have happened, one of the most important is the piece chromosome. Also, every year people take a step towards the emergence of artificial intelligence. It is also important to note the appearance of a private spacecraft.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.