The emergence of big data may accelerate our research on difficult problems, such as cancer, traffic and environmental problems. These results, of course, indirectly benefit ordinary people, but if some groups use big data to study our society or purchase behavior, it may increase the bargaining power of operators, and we ordinary people may even lose the right to speak.

So, what are we doing with big data? Directional application is very important. If we study public affairs, we should pay more attention to public welfare activities and have a reasonable guarantee mechanism for scientific research. For example, should people who have contributed to the research of new drugs share the direct benefits of medical progress?

How to allocate these rights depends on the application of blockchain technology. In the era of big data, if it is only the amount of data, it is not real big data. Big data is about enjoying data, and the premise of * * * is data security and privacy protection, and at the same time, there must be a good benefit distribution mechanism.

Blockchain era +5G+ Internet of Things+A lot of data * * * Enjoy = Big Data era