Apy (annual percentage yield) is a measure of the return on an investment over a period of time. While it is true that Apy can decrease over time, it is not necessarily the case that it will always decrease. The amount of return that an investor will receive from a particular investment will depend on a variety of factors, including the current market conditions, the type of investment, and the length of time the investment has been held. In some cases, an investor may even see an increase in their Apy over time. For example, in a biswap, the Apy can increase if the market conditions are favorable and the investor is able to take advantage of the opportunities available. Ultimately, the Apy of an investment will depend on the individual investor's ability to identify and capitalize on profitable opportunities.