Except people are actually using GBP for something. BTC is just people holding on to it hoping it goes up.
Put differently, are there any circumstances where people would buy GBP expecting it to go down? What about BTC? That right there tells you the difference between the two.
Put differently, are there any circumstances where people would buy GBP expecting it to go down? What about BTC? That right there tells you the difference between the two.