User: Is it true that humans can only focus on two or three things at the same time, and when we think we're multitasking with more tasks, we're just doing multiple tasks poorly?
Assistant: That's a really interesting question.  In fact, studies that have been done on "multitasking" show that people tend to perform poorly when they're doing more than two things at a time.  This phenomenon is related to the concept of "attention", and cognitive scientists have found that humans are able to pay attention to one main thing at a time but also are able to do "background tasks" that don't require much of our conscious attention.  So I'm not sure if we are "genetically limited" to performing a set number of tasks at once, but we are limited by our capacity for sustained conscious attention.