system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 Why the US dollar has been subject to 768% inflation in fifty years ?
gpt
Because inflation is good. Sort of. 700% sounds like a lot, but actually it's only about 4% each year. And that's not a lot. A few percentage of inflation is what most countries aim for, since this tend to make people more likely to invest.