Yes, it's basically true. For true novelty, you need to create a bunch of examples and teach a model (fine tuning). Depending on how novel it is, it may be hard

Yes, it's basically true. For true novelty, you need to create a bunch of examples and teach a model (fine tuning). Depending on how novel it is, it may be hard to teach and teaching may damage a model's generality (over training), so you need to include examples of everything else and train at a lower rate, and it'll take longer and cost more. But it's possible.