I disagree with that. The entire point of data visualization is to highlight patterns in data to make the data easier to understand. Highlighting what's already known is a waste of time. A good visualization will help uncover something new.

I feel bad saying this, because it probably took a lot of work to make, but this prime number spiral is kind of pointless. What is it showing me? If I let the painfully slow animation run for a while, and look at the bigger picture, what insight will I gain about prime numbers? Probably nothing.

It's even a bit misleading, because to the best of my knowledge, there's no connection between spirals and prime numbers.

If I'm just being dense and not getting it, I'd love for somebody to explain it to me.