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question 9: why do children play?

Children laugh on average 400 times a day, adults 25 times. Why do we stop laughing? And why do we stop playing – most of us anyway? Is play simply a form of learning, a preparation for the future?  Read more

question 14: when will there be thinking robots?

In the movies, smart robots at our beck and call are a commonplace. So why is it taking so long to get there in reality? When will it be just as natural to have a pet robot as to have a pet animal? And what can we learn about biological life when we design artificial life?  Read more

question 32: what is a human?

We are human beings. We breathe, we grow, laugh and cry. Biologically we are animals, as Linnaeus realized back in his time. But unlike all other animal species, we can reflect on why we are here. So what exactly is a human being?  Read more