Page 20 - All About Space 68 - 2017 UK

Mirror universe
Mirror
universe

Backwards universe Inflation

Both regions would have
emerged after a period of
If a cosmos where time runs backwards exists, then it would have been rapid, exponential growth
born from the Big Bang at the same time as ours known as inflation, which gave
rise to multiple universes.

Backwards arrow
Order tends to disorder in
both halves, but because
the arrow of time is
reversed, our past is in
their future.
Big Bang

Possible planets
It may be possible for stars,
planets and people to form
where there's a reversed
time arrow, but we'd never
be able to meet them.

Cosmic Microwave Background
Inflation blew up tiny quantum fluctuations
so that they became 'set in'. This led to the
slightly hotter and cooler regions seen in
the Cosmic Microwave Background.

How time

could flow
backwards in

an alternate Virtual particles Arrows emerge
Imaginary particles, each with a random speed, are
Arrows of time appear, leading some of the particles
© Tobias Roetsch universe placed inside a computer model during a period to cluster together in a high entropy ordered patch.
before the Big Bang.
The others remain disordered.

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