It’s a genius thing really. Like a lava lamp but with bubbles in water instead. It’s timed perfectly so that a bubble starts out blue at the bottom and ends up red at the top. It changes somewhere in the middle. And I know it’s because of the light but something in me still wonders how something as little as a bubble can pull off something as difficult as changing colors. It seems such a violent process, going from a cool turquoise blue into a full vibrant red. How can anything be the same after that?