then how about you invest in gold, its traditionally been a good fear hedge. or more appropriately adjust the weighting between gold & market based on your perception of risk.

Note that I am not actually recommending investing in gold just making your abstract fearful thesis into something real. IMO unless you are talking about some civilization hurting disaster (like yellowstone .. not even then perhaps) markets recover from crashes. in a way they are a measure of optimism for future. so I'd factor than into my plans.