People say blue doesn't exist in nature. What about azaleas. They can be blue

Yes, they have gold flakes inside their shell as they consume it off the ocean floor.

I went to university for a STEM degree and I've never heard this. I assume art school kids are the ones setting the definition so what do they consider to be blue? Also 8's

Birds when u choke them.

Retards, there is a blue flowers and insects in nature

Balls.

Sick quads

Also nah it's not new it's old as fuck I heard this "rule" when I was in middle school in the early 90s.

I was just thinking it sounds like one of those things people say when you're a kid like "blood is blue before it leaves your body"

It literally is one of those things. But yeah, it's nothing new.

they say blue is RARE not VOID stupid ass

Neom fish have a blue line on them. Whales are blue.
Blue Jays are blue, so are Magpies.
Come to think of it, most aquatic animals I can think of are either blue or silver.

Blue as in pigment. Blue exists in nature due to mechanical fuckery. So it's not really blue. Just perceived blue due to microstructures.

Blue still exists as pigment, it’s just rare because the pigments often come at a cost such as reduced antioxidants