[jdbxhdd]

Also I do not agree with the premise that we can only think about one thing at a time.

We routinely communicate with multiple people at once and also communicate with the same persons in multiple threads of conversations.

Of cause this means that we switch between those tasks and do not really do them in parallel. At most we listen to one person, answer a second via speech, a third via text while thinking about what to respond to a fourth

We just switch our focus of attention quite fast

[imzadi]

This is the part that bothers me. I can definitely think of multiple things at a time. It really just depends on the complexity of the tasks. I can listen to and process and audiobook while driving to work every morning, for instance. I definitely can have multiple thoughts in parallel. I remember when I used to recite prayers, I would be reciting the memorized prayer while thinking about other things. Both things were happening at the same time. The memorized task takes less processing power, but it still requires some thought to execute.