Web3's need for decentralized storage

With the launch of Ethereum, the world received a decentralized computer that can solve any computational problem if there is enough gas in the block. However, to solve any problem, data storage is also needed. Without data storage, for example, blockchains will be unable to fully support and host social networking apps and other data-heavy services. Data storage operations on blockchains have traditionally been costly.

The main reason for the high cost is the need for redundancy - storing a copy of the complete blockchain by thousand of nodes for decentralization. Running a node was not painful immediately after the launch of Ethereum due to the small number of transactions and their simplicity; but at the moment, everything has become much worse. Furthermore, the blockchain size growth has led to an increase in the node's synchronization time in full syncmode, which needs to execute all transactions.