Human mental bandwidth is finite. You’ve probably experienced this before (though maybe not in those terms): When you’re lost in concentration trying to solve a problem like a broken computer, you’re more likely to neglect other tasks, things like remembering to take the dog for a walk, or picking your kid up from school. This is why people who use cell phones behind the wheel actually perform worse as drivers. It’s why air traffic controllers focused on averting a mid-air collision are less likely to pay attention to other planes in the sky.
We only have so much cognitive capacity to spread around. It’s a scarce resource.
This understanding of the brain’s bandwidth could fundamentally change the way we think about poverty. Researchers publishing some groundbreaking findings today in the journal Science have concluded that poverty imposes such a massive cognitive load on the poor that they have little bandwidth left over to do many of the things that might lift them out of poverty – like go to night school, or search for a new job, or even remember to pay bills on time.