we assume that aliens who would be able to cross space are more technically advanced than us since we have not mastered that technology yet.
Exactly. The inflation becomes a tax on anyone holding currency.
finally a tax that won't be a problem for me...I found the "have no currency" loophole
"No, no, I don't mind being called the smartest man in the world. I just wish it wasn't this one." -- Adrian Veidt/Ozymandias, WATCHMEN