I will tell you the opinion about secure from a master of economics, Friedrich August von Hayek.You can learn what Secure currency could be holded.
First, the method of payment can increase or decrease the total amount of money by adjusting the interest rate of the payment. Through the payment method, Token can continue to be circulated to the public. Once other Tokens continue to depreciate, especially those air coins, the public will increase the demand for stable currency.
In order to prevent the possibility of the issuer from increasing the value of the currency at will, it is also allowed to pay the amount of money issued by the issuer in the nominal amount of the currency of the issuer, or in the corresponding amount of other currencies as long as its value is sufficient in the market. The equivalent of the product purchased on the purchase of this payment can be used. This will give users a high probability of eliminating the concern of the issuer to increase the value of the currency. In this way, a large amount of premium currency can be obtained, but a series of investments can be made to offset the general decline in prices caused by the economic process itself, including interest-bearing securities and commodities.
The second is to sell or repurchase its own Token with other Tokens as tools. When the demand in the market is less than the money supply, you can purchase your own Token through other Tokens; when the market demand is greater than the supply, you can use your other Token to purchase your own Token. When selling their own Token or when the public borrows from other Tokens, they will exchange a large amount of money in the market and carry out some investment business. In order to prevent the surge in demand for its own stable currency caused by the sharp depreciation of other currencies due to intense inflation, it is possible to repurchase its own stable currency by increasing the exchange ratio. Therefore, you need to prepare sufficient preparation currency when making investments.