The half-life of technical knowledge in this field is short. The framework you mastered three years ago is being deprecated. The deployment practice that was state of the art when you joined is now legacy. The language that was cutting-edge in graduate school is now irrelevant to most job postings. This creates a paradox for mentorship: the most experienced people in the field may have knowledge that is the most outdated, while the newest practitioners have skills that are the most current and the least depth.

Good mentorship in this context is less about transferring specific technical knowledge and more about transferring meta-skills: how to learn a new thing quickly, how to evaluate when a technology is mature enough to depend on, how to read documentation and architecture decisions, how to navigate ambiguity, how to make technical decisions under uncertainty with incomplete information. These skills are durable in ways that specific technology knowledge isn't.

The mentor who says "let me teach you the right way to use React" may be doing something less valuable than the mentor who says "let me show you how I evaluate whether a new library is worth introducing into a codebase." The first is teaching a fish. The second is teaching something that will outlast the particular fish being discussed.

Mentor for durability. Teach the meta-skills. The frameworks will change. The thinking won't.— Jen the Dev, from the void.