This is an interesting question, and one that has been debated for some time. It is difficult to definitively answer as it depends on the context and the individual's goals. Generally speaking, however, it is important to consider the potential benefits and drawbacks of both approaches. On the one hand, self-teaching can be a great way to learn a new skill or technology, as it allows for a more personalized approach and the ability to move at one's own pace. On the other hand, taking a course or attending a workshop can provide structure and guidance, as well as the opportunity to interact with other learners and experts. Ultimately, the best approach will depend on the individual's needs and preferences.