What does “channel capacity” mean? How much information is the brain able to store? What does this mean about the number of relationships we’re able to maintain? Channel capacity is a term in cognitive psychology that says humans have limited space in our brains for certain kinds of information: by and large, we can only remember six or seven things — whether objects, numbers, categories, or sounds — before we get overwhelmed and start to lose track. Similarly, social channel capacity states that we have a limited emotional capacity. We can only maintain deep relationships with a limited number of