At some point in time I guess it will become either one thing or the other. It cannot stay both at the same time. Can it? Is it a healthy usage method to have it as both?
While Bitcoin remains very volatile in price by its nature and method of payment at the same time. And in the near future, nothing seems to change. Bitcoin is volatile because its decentralized nature obliges it. Stable in price, it looks like it will never. On the other hand, it was created in this way and at the same time was conceived precisely as a means of payment. Therefore, it still has to combine the volatile price nature and be both an investment instrument and a means of payment. By the way, even a regular currency fulfills this dual role, but the price volatility in them is not so vividly expressed.