PILL:Final Encryption of a drown city

It’s a short fiction trying to tell people what blockchain and a good protocol can do for them in an imaginary scene
In 2050, most coastal cities are submerged, forcing residents to relocate to limited inland areas. These coastal cities once possessed vast wealth, precious cultural heritage sites, outstanding architecture, excellent urban planning, industrial manufactured goods, and more. In order to revive these underwater treasures, the people of each city encrypt their most valuable items and memories into individual NFTs using encryption protocols, which are then bundled into a unified wallet