The difference between the big digital technology and the blockchain

Technology era 3.0 has grown to its peak with giants like google, facebook, apple and amazon. These companies are now leading the digital industry. They hold not only the money, They also keep their information and keep it private. All information is stored and transmitted to a highly secured server, managed in a centralized way. They are stealing guest information. This number reaches billions of billions of dollars every year through advertising and marketing channels.
With Blockchain, this technology offers a whole new idea, in which every close Everyone's contributions are equal and transparent (completely transparent and transparent). It is based on the interests of the community and is based on the number of members of the beloved community, which is the trend of the times. Useful for the community it will survive and grow. Technology era 4.0 will be where the blockchain grows.