‘There are infinitely many infinities, each one infinitely bigger than the last.’
From BBC’s fantastic Horizon series — which previously explored such intriguing topics as the nature of reality, the age-old tension between science and religion, how music works, the volatile history of chemistry, Richard Feynman’s legacy, quantum mechanics, and the nature of time — comes To Infinity and Beyond, which teases apart the seemingly benign idea of infinity to pull you into a world of perplexing paradoxes.
What is the biggest number? Is the universe infinite? How did the universe begin? Might every event repeat again and again and again and again… Is the Earth just one of uncountable copies, tumbling through an unending void? Your intuition is no use here. Faith alone can’t save you.
Mathematicians have discovered there are infinitely many infinities, each one infinitely bigger than the last. And if the universe goes on forever, the consequences are even more bizarre. In an infinite universe, there are infinitely many copies of the Earth and infinitely many copies of you. Older than time, bigger than the universe and stranger than fiction. This is the story of infinity.
For complementary mind-bending reading, treat yourself to physicist Lawrence Krauss’s A Universe from Nothing: Why There Is Something Rather than Nothing and David Deutsch’s The Beginning of Infinity, one of the 11 best science books of 2011.