There are now more things connected to the internet than the number of people in the world. Many of these devices are inside our home, from Bluetooth speakers to smart coffee machines and fridges. In the future, even our plates and curtains might be hooked up to the internet. The house will then resemble a lab, in which we are the studied subjects. How much alcohol do we drink? How often do we wash our hair, or cut our nails? Are we snacking more than usual? Spending longer in front of the mirror? Maybe the homes of the future will know.