For inflation proofing a fortune, sure, keep a large chunk in gold (or something else that is stable and movable). But for "emergencies" I'd try to keep some cash.
* 2 weeks supply of food, water, heat, and cash * 2 months supply of similar but in longer-term forms (often precious metals go here; ones that are "well known" are the best, like junk silver)
Beyond that it's up to personal discretion and location, but the two week rule is a good one, in my opinion. 90% of "hiccups" are done in two weeks.
So long as your investment horizon is on the scale of years and decades, it's never a bad time to buy an asset with constrained supply in exchange for paper that's constantly being debased.
When your ruler is getting shorter every year, you'll never stop growing taller.