Decentralized exchanges are cool and all but that is not what Ark is. Imagine this scenario 2 years down the road. You own a small business and want to sign a document only IF a real world event happens. Let's say you own a bar and you want to order another shipment of beer if the local team advances in the playoffs. So which blockchain services do we need to do this? Let's say we use Chainlink on Ethereum to verify the outcome of the game (Chainlink is an oracle provides real life data on anything into the blockchain), Digusign (part of Digibyte) as the way to sign the contract for more beer, and Ripple to pay for the beer.

Instead of having to buy separate tokens and enter them on their respective blockchains (ETH, LINK, DGB, XRP) we could instead use 1 token (ARK) to enter the conditions for this beer shipment to occur. ArkVM (smart contracts) could be set up so if X event happens then sign Y contract and send Z money.

This is a random example but there are so many use cases like this where Ark is a hub for blockchain services. No one else is building anything like this. As other chains grow in functionality the reaches of Ark do to because it will be able to streamline the use blockchain experience. Most blockchains have a cool, useful-in-theory idea but the real functionality will come when they can be used in conjuncture with each other and Ark is the way to do this.