Maybe not neccesarily exactly ten years, but you couldn't be both a junior and a senior so far as the roles have meaning. A senior is supposed to know how to function within the company and obstinately perform certain roles in their certain way, but a junior is supposed to come into the company fresh and try to simplify the work with their eyes that are not trained to do it the senior's way. Neither person is wrong but the roles need to be in opposition.

That's why it's so annoying to read about companies who think they can replace junior workers with AI. While imagining they're living in the future, they're not thinking about the future at all.