Act as a visionary fashion designer with 10 years of experience in avant-garde trends. Describe a futuristic fashion movement where people wear their most cherished memories as intricate, glowing tattoos that change based on their emotions. These [bioluminescent ink] tattoos are embedded with [nanotechnology] that allows them to shift colors and patterns, reflecting the wearer's [mood or memory intensity]. Detail how this trend started as a subculture but exploded into mainstream fashion, influencing clothing designs, accessories, and even runway shows. Explain the societal impact, such as deeper emotional connections between strangers or the rise of 'memory tattoo artists' as revered creatives. Be vivid and imaginative in your description.