This is something I’ve thought a lot about, and I think the easiest answer is to get yourself a job in a field that necessarily requires a broad knowledge base,

This is something I’ve thought a lot about, and I think the easiest answer is to get yourself a job in a field that necessarily requires a broad knowledge base, even if doesn’t seem like a “Renaissance man” sort of industry. I don’t work in the shipping industry, but I’ve always had the impression that it’s one of these fields. You need to understand global geography and shipping lanes, which leads you to understanding the history of these regions, which leads you to researching their religions and cultures, their currencies, their artworks, their relations with other states, and so on. I imagine that a high level executive in the shipping industry needs to understand most of these things at some level. Other potential industries might be the art market, food and things like coffee, and basically anything that cannot be accomplished by focusing exclusively on a tiny problem.