The brilliantly optimistic thing about an exponentially growing, resource-unconstrained interstellar civilization (which we will hopefully survive to become) is

The brilliantly optimistic thing about an exponentially growing, resource-unconstrained interstellar civilization (which we will hopefully survive to become) is that as long as the ability and desire to consume media grows proportionally to the ability and desire to create media... the amount of media from the past will be less than newly created material at any given time (∫e^t = O(e^t)), and thus media from 2019 should be as accessible in 3019 as media from 1920 is, if not more so. We are creating an infinite legacy, and that's really really cool.