However, since you're effectively brute forcing a match on an unknown key, the universe may go cold and dark before your content arises, for any content larger than 128 bits or so.
But you’ll restart with it in not-yet-lost-it state and will lose it eventually. There is nothing useful in /dev/random, really, apart from the entropy for crypto. Trillions of trillions of … of trillions unique virtual atoms of no particular value.