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You can say about Ethererum what you want, but the payable keyword in Solidity blew my mind.

Having a globally available standardized decentralized and transparent way to pay for all APIs calls baked into a programming language is a pretty awesome feature.

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It's a nice idea, but what can I pay for now? Does it rely on a centralized notion of identity?

Right now Ethereum smart contracts don't have access to real world data from outside the Ethereum virtual machine. This is why most contracts are financial in nature.

There are projects attempting to fix that but so far nothing has materialized yet.

What about Chainlink and TheGraph?

I believe Civic is working on a sort of identity verification blockchain integration but I haven't heard much come out of the space as of yet. In fact, I think it might dissuade people who don't want their identity linked to their crypto transactions.

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