How would you explain“brief as bioluminescence”? Noctiluca, I thought, Ceratium, as the tracers began to show themselves in sifted twilight, two words learned on a school field trip to the tidewaters of Virginia that appeared as I was shooting at the man, paying no attention then to the strange connections made inside of any mind, the small storms of electricity that cause them to rise and then submerge, then rise again. A fleeting thought of a young girl sitting beside me on a dock, back there the twilight coming on, the crack of tracers as I shot and shot again, the man crawling from his weapon until he stopped and his blood trickled down into the river in its final ebbing tide, brief as bioluminescence. How would you explain“brief as bioluminescence”in the last sentence? What does it refer to? Thanks!