Light is comparatively and objectively slow in comparison to the distances that exist. Andromeda is 1M light years from us. From that perspective, 300k kph is oddly slow actually. I love the passion that you're brining to the table though. It reminded me of the blue giant stars whose lifespans can be as short as tens of millions of years, more often hundreds though. For billions upon billions, I suppose that would be white and brown dwarfs. Although, if we could orbit black holes and harness the energy of gravity, then we're really talking long time scales. Cracking the aging problem would allow us to think in very long timescales. But I do wonder whether the human psyche could handle such long lifespans.