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The Finely-tuned Universe

Fine-tuning

How improbable is a universe that contains intelligent life? How ‘finely-tuned’ do the laws of physics have to be?

George Ellis

What is fine-tuning?

‘You can ask how different can the laws of physics be and still enable life to exist. And it turns out there are a great many ways in which, if you vary physics, pretty soon life cannot exist.’

Transcript

Marcelo Gleiser

Fine-tuning and the multiverse

‘There are many, many subtleties to this argument. But at the end of the day you need to be able to test something, otherwise it’s not science, it’s something else.'

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Peter Atkins

How did something come from nothing?

Ard: 'So, where did the universe come from? Do you think science can answer that question?' Peter Atkins: 'Well, nothing else can.'

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