I found the distinction between JPA and Hibernate particularly helpful. It’s easy for beginners to assume they are the same thing, but explaining JPA as the specification and Hibernate as an implementation makes the relationship much clearer. The progression from JDBC to Spring Data JPA also makes sense because each step removes a specific layer of repetitive work rather than replacing everything at once. I also liked the dirty checking example, since it shows why ORM can be useful without hiding the fact that database operations are still happening underneath. The “learn JDBC to understand databases, Hibernate to understand ORM” takeaway is a practical way to think about the learning order.