That's not far from happening. Today's faucet on freebitco.in is 14 satoshi so if the price of bitcoin keeps pumping we might experience the 1 satoshi faucet.
There will come the day when 1 Satoshi will equal $1.00 USD, Hang in there
Yes i would say it is totally impossible for that to happen. The whole fortune in the world wouldn't amount to 10% of the value of "1 Satoshi @ $1 USD" even in 100 years and assuming that bitcoin has become the "only" currency then.