What too much information causes
Attention is essentially a cognitive faculty with a very well-marked ethical component, because to be ethical to you, I need to be attentive to your needs and desires. I need to be aware. We cannot be kind and considerate without paying attention to others. If I am distracted, you are an abstraction, you are not a real person. Attention is necessary for civility.
As a follow-up to yesterday's post, this might explain some of the behavior that we see on the Internet today.