tangibles trump conceptuals. Modern fiat currencies are generally accepted, but have essentially no backing. Because they are largely a by-product of interest-bearing debt, modern currencies are destined for inflation. In the long run, inflation dooms fiat currencies to collapse. The majority of your assets should be invested in productive farmland and other tangibles such as useful hand tools. After you have your key logistics squared away, anything extra should be invested in silver and gold.
James Wesley Rawles