Oh poor Atlas

         46 billion light years to the middle, and then 92 billion on the other side too.
         The sphere was getting unbearably huge.
         During the millennia, he had become - well, not contented, but resigned at least, to his situation, when suddenly, the dome had expanded, become spherical. He hadn't been prepared, and had almost dropped it, the rounded sides slipping in his hands.
         When he squinted through it, he saw the world had changed. It was no longer floating on the sea, but rather, the sea was encompassing a green globe, resting in the center. The stars on the sphere twinkled and poked out from the dark matter, occasionally outshone by the sun as it passed underneath them on its journey around this new body.
         With a sigh, he placed his hands a little wider apart, steadying the new world above him.
         Another millennium passed by, give or take a couple of centuries, when the sphere grew again. This time he had been somewhat prepared, having followed the little specks on the globe more carefully.
         The globe was no longer the center. It was now circling the sun, and a small, intricate system of globes and satellites had joined it in travelling in more or less circular paths inside the sphere.
         He pushed the sphere up again, shaking his head lightly in incredulity. Whatever would they think of next? Why couldn't they just have been satisfied with a flat world? Why did they absolutely have to keep poking at the tapestry of reality and come up with new things to explore? New things to investigate? It's not like there were that many of them, anyway, so they had room enough.
         After that it went fast. The sphere almost constantly grew larger and larger, and he was struggling, trying to keep up.
         Somehow the specks had created an immense universe. The stars had disappeared from the fabric of the sphere and the massive space inside had been filled with suns and globes instead. His arms were trembling and his skin was glistening with sweat as he kept a somewhat uncertain hold on his charge.
         This was insane. What did they need all that space for? They barely covered one globe, never mind the billions and billions of globes they had come up with!

         If they kept this up, he was going to lose his grip.