The cosmic fish swims the void. To him, space is tangible. He moves on currents of dark energy, eating entropy and repairing the universe.
The fisherman stands outside reality. He carves a hole through the frozen void, and stabbing his leister through the newly-cut wormhole, spears the fish, removing him from the cosmos.
The fisherman eats well that night, but without the fish, there is not enough dark matter to bind the stars together. The cosmos expands into the void, moving away from itself at an alarming rate. Eventually, it bursts, spewing spacetime hither and tither.
Everything dies, even the fisherman.
–A. A. Rubin