Blockchain and decentralized applications

Crypto is so daunting to people because there's too much hypothetical, hyperbole, and jargon. The best way to understand is through example. What is 1 specific example how crypto/blockchain tech is offering a 10x solution or an entirely new solution to a problem?

Extreme decentralization is a solution looking for a problem, with very small market demand in real world. Most btc & eth maxis have yet to wake up to that.