The basic rule stands: in any multitask situation, whenever we have to perform multiple cognitive operations under the control of attention, at least one of the operations is slowed down or forgotten altogether. Because

Our brains are not wired to be good at multitasking non-routine activities. We might feel good when we are busily multitasking, but we are not necessarily productive.

our ability to process information and make decisions in the world is limited by a fundamental constraint: We can only think about roughly seven things at a time.

The limitation of consciousness is demonstrated by the fact that to understand what another person is saying we must process 40 bits of information each second. If we assume the upper limit of our capacity to be 126 bits per second, it follows that to understand what three people are saying simultaneously is theoretically possible, but only by mana