New show -- Connected. Supposed to be about the hidden science in everything.

Using computer vision and machine learning to recognise pigs in farms by their faces, and tell whether they are happy or not.

Happier pig == more productive == better tasting meat apparently.

Dating apps like Tinder know way more about you than you think they do -- including sexual things.

What is Lagos' sewage system? I remember having a "soak-away" that used to get emptied by a large, garbage-collector-like truck.

Reason for asking is because
1. London has a sewage system they can use to collect information like how many more people are taking antidepressants.
2. We are unwittingly drugging animals like fish with the drugs we take and pass on in our waste.

The bacteria in the poop the Apollo astronauts left on the moon **might have** seeded life on the Moon.