Bitcoin is not money but most likely an asset. After all, when the price of low people does not particularly want to spend it, so at such a time it will not be desirable for you to pay for goods or services, it will be convenient for you to pay when the price is higher, but this may not be timely, which is why you can not consider bitcoin as money, rather it is like an asset, with the function of money more similar to Stablecoins.