Black ice is what people looking for an excuse call ice. Ice is ice. People forget that any time the temp is below freezing, there can be ice on the road and they should drive at appropriate speeds to assume they'll hit ice at any time.

But they want to drive fast so they just go ahead, and they made up the term "black ice" as a defense, as if ice is some kind of a ninja attack that nobody could have predicted.

I've not been affected on my bike, because if it's below freezing I ride with studded tires. I have few incidents in the car either because I actually expect ice at any moment, I check my traction and when I'm taking a curve I slow down significantly. Last time I got caught by ice and lost control was when I was about 20 years old and quite inexperienced.