A broader understanding gives your more fallback positions in the event of some disaster or catastrophic economic collapse, so I'd say: Put a little bit of you

A broader understanding gives your more fallback positions in the event of some disaster or catastrophic economic collapse, so I'd say: Put a little bit of your time into learning interesting new skills in even vaguely related fields. A Jack of all trades may be a master of none, but if chaos is the future, adaptability is the key to survival.