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Fact
You are taller in the morning
By around a centimetre, and it is gone by evening.
Fact
The observable universe is far wider than its age in light years
13.8 billion years old. About 93 billion light years across. Nothing broke the speed limit.
Fact
Eight per cent of your genome came from viruses
Ancient infections wrote themselves into the human record and never left.
Fact
The strongest muscle in your body is in your jaw
By force relative to size, the masseter wins.
Fact
Old TV static was partly the birth of the universe
A small percentage of that snow was radiation from 380,000 years after the Big Bang.
Fact
Some people have no mind’s eye at all
Asked to picture an apple, a small share of humanity sees nothing whatsoever.
Fact
Learning to read physically rewires the adult brain
Adults taught to read late show changes visible on a scan.
Fact
You have a hole in your vision and your brain paints over it
There is a patch of your visual field with no receptors at all. You have never seen it.
Fact
The invisible gorilla walked through and nobody saw it
Counting basketball passes made half the audience blind to a person in a gorilla suit.
Fact
A placebo can work when you know it is a placebo
Patients were told outright the pills were inert. They improved anyway.