timothy from the why-come-you-don't-have-a-tattoo? dept.
mbstone writes "Aside from ending painful daily fingerpricking for millions, the invention of the color-changing blood sugar tattoo should also reduce the vast amount spent on glucose test strips ($1/test). Next, I want to see artistic diabetic tattoos that morph according to the wearer's blood sugar."
If it happens once, it's a bug. If it happens twice, it's a feature.
If it happens more than twice, it's a design philosophy.