Dollar will always lose value, that is what fiat currencies do, that is why we have bitcoin. To start off with dollar has always lost value in the most important regular stuff, your gallon of milk may not lost too much and it could be worth just a bit more than what it was 10 years ago, but check how much Harvard takes for studying there 10 years ago, 20 years ago and 30 years ago and you will see the difference, take a look at TV's and you will not see huge difference, even though technology is mind bogglingly better it is maybe x2 than what it was 10 years ago, or computers, yet check healthcare and you will see how it went up x10 just in the past 10 years, a cancer treatment could take up as much as half a million dollars.
So long story short, people increase your salary based on computer and milk and so forth and they ignore the college fee and health, they cherry pick.
There's no comparison of bitcoin with US dollars.
Bitcoin has their function and rules it won't deal with any other currency especially with US dollars.
It depends on the supply and demand, whenever people sell their coins in a panic the price of bitcoin falls.
I suppose that this is a different matter, because in reality Bitcoin is different from the dollar and does not need to be compared. But the fact is that the dollar is depreciating, because the American government prints a large amount of paper money and therefore the best asset for investment, as well as for the future storage of their savings, people will and are already buying Bitcoin. Of course, today the dollar exchange rate has stabilized and even showed small growth rates, but nevertheless, since the dollar is an international currency, according to statistics, paper dollar funds are not enough to provide the special countries of Asia and Africa, and we have to turn on the printing presses again. In addition, the pandemic forces to minimize losses in economic terms by increasing the money supply and another indicator that the dollar has already lost its unreliability.