We often picture the quantum world as ‘uncertain’, a world of probabilities and randomness. Not at all, says Slovenian physicist Andrej Detela. The quantum world is more like a dance, where entangled particles are always in complementary positions, part of a deeper layer of harmony. It is our interaction with their world that breaks the order. To understand this fully, he says, we have to look afresh at the concept of disorder – entropy – that has dominated physics since the 19th century. Alongside it we have to set the concept of order – developed by several 20th-century physicists into the idea of syntropy. And with entropy associated with a flow of time from the past, syntropy needs a flow of time from the future.  We can understand our world in a fresh perspective if we try to see both flows in mutual balance, he says.