The Chinese artist answers questions from Observer readers and art world luminaries on creativity and protest, Chinese politics – and why he never cooks the same dish twice
The artist on working with the world’s blackest substance, the troubled legacy of his Olympic sculpture and the state of the art world today
Everything in your smart home, from the lightbulbs to the thermostat, could be recording you or collecting data about you. What can you do to curb this intrusion?
Studio Formafantasma are revolutionising the use of timber in a way that will make you see this age-old material in a new light
With ever more tech in our lives, our data is vulnerable. Here are our six top tips to keep it safe in the new year
From hemp and cork buildings to energy-efficient council housing, the climate crisis got us thinking laterally