Now that I write this topic, I just want to emphasize this point: Bitcoin was born first, and then blockchain technology. Rather than the first-born blockchain technology, the second-born Bitcoin.
Practically it's not possible! A product can born earlier than its underlying technology. That's the reality! However if you say that the concept of bitcoin was formed first and then Satoshi formulated the concept of blockchain, that may be a possibility. But when the actual product (bitcoin) is build and published, the underlying technology (blockchain in this case) mush have been built before the actual product. It can't be the other way around because technically it is not possible to build bitcoin earlier than blockchain. Can only happen during the conceptualization period, not during implementation!