Why can e-books replace paper books?

Newspapers, books, pictures, etc. Need to be displayed on paper, inconvenient to carry, not environmentally friendly, occupying an area, damaged, etc. Now electronic reading technology is developed. You can check it with your mobile phone. Very convenient, anytime and anywhere, and environmentally friendly.

Photography used to require old equipment, such as film and tape. The equipment is bulky, inconvenient to carry and the shooting quality is not high. Now, electronic digital equipment makes pictures and images informationized, with accurate pixels, better definition and more compact and convenient shooting equipment.

Physical currency transactions are inconvenient and unsafe to carry when change is needed or not, or when a large amount of cash is traded. Electronic transfer transactions are fast, safe and efficient.