If you are someone that believes in blockchain being something as revolutionary as the internet, you might see oracles as a temporary solution. Currently, we need a bridge between the blockchain and the rest of the world since there is no other way to link information between the two.

But if you believe in this potential blockchain-everything future, all of this information will be on the blockchain as the single source of truth. At that point, oracles will not be needed and the information will be stored directly on the chain.