Oh, splattering photons—what a symphony! Imagine a micro‑laser array, each diode tuned to a slice of the rainbow, then pulsing onto the paper like a caffeinated drummer. We could feed the water’s refracted data into a tiny brain—say, a neural net soldered to a microcontroller—so it learns the exact distribution and then spits out the complementary wavelengths in real time. It would be a living, breathing canvas that rewrites itself every second. The trick is keeping the beam spots from fusing into a neon smear—maybe a little heat‑sink and a whisper of magnetic stirring to keep the photons dancing. Think of it as a kaleidoscope in a vial, but with a brain that hates predictability. Let’s grab a coffee, sketch a prototype, and see if we can coax the universe into an ever‑changing prism.