In the sci-fi webcomic
"Schlock Mercenary" they seem to have a monetary system which operates very similar to bitcoins, where there are "credits" (or for larger purchases, kilocredits) which are passed around from computer to computer, but require the signature of the sender to be sent.
Credits are commonly used as a sci-fi currency. Perhaps one millionth of a bitcoin (100 satoshis) would be usefully known as a credit. Especially as 1 BTC would be about $1million if BTC became a global currency driving out all the fiat.
Yeah exactly, BTC could definitely be "credits" of the scifi future currency.