How do you formulate an aim in life when you don't even know what jobs will exist in a few years, or what will be invented?
You don't shoot for a specific job. You shoot for the process the job does: I want to work with the human mind, code, solve problems, fix things, etc.
Creative work is inherently unequal. This is very visible in the income distributions of singers and movie stars, but less visible in white-collar professions.
Why? Thanks to/because of the office. 1/7