Cross-chain transactions used to be like sending a letter—had to find a dedicated postman (bridge), pay high postage, and worry about it getting lost. Caldera's Metalayer allows chains to send messages themselves, no need for a postman, instant delivery, and cheaper postage.
A few days ago, I saw someone transfer an item from a gaming chain to a DeFi chain, just a click, and the item arrived, with ERA deducting half a cent. That person said: 'Before, I was worried about losing it when transferring back, now it's as easy as passing a bowl of water.' People are at ease, naturally they come back often, and the utility of ERA increases as well.