In book-time a whole earth year is only a second
This should put things into perspective, and i guess that if the fountain is a wild goose chase i can always dream about the after life being a reading only time where you you can read non-stop for millions of years before you advance to the silent film stage, after that the classical music being the final one before being placed into 12 hundred thousand historical events, then after that will be the beginning again where you will remember everything, and can thus make short cuts and be all wise-assy with those who seek to be a speed bump to the good afterlife events.