A Goldilocks World: Introduction (01:29)

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Tara Shears introduces debate participants Chiara Marletto, Bernard Carr, and Massimo Pigliucci. Shears introduces the first question—why does the universe appear finely tuned for life?

The Pitch: Chiara Marletto (02:49)

Marletto states that the universe is finely tuned for life in two senses—bio-friendliness and the laws of physics. The laws of physics have certain traits with three properties. Marletto argues that new tools must be developed to improve the multi-universe theory.

The Pitch: Bernard Carr (04:43)

The weak anthropic principle says given the constants of nature, there are selective places and times that we have to exist; our existence as observers imposes a selection effect on how we observe the universe. Carr proposes that the universe may appear finely tuned depending on the number and intricacies of fine-tunings.

The Pitch: Massimo Pigliucci (05:23)

Pigliucci proposes moving away from the anthropic principle and questions how much of fine-tuning is scientific.

Could the Laws of Nature Have Been Different? (13:14)

Marletto, Carr, and Pigliucci discuss whether or not the universe is finely tuned and if the laws of physics could have been different.

Does the Multiverse Solve the Puzzle? (12:35)

Marletto, Carr, and Pigliucci discuss whether or not the multiverse theory solves the problem of apparent fine-tuning.

Can we Find Answers and, if so, Where Should We Look? (06:38)

Marletto, Carr, and Pigliucci discuss whether or not an answer exists to the question of why the universes appear finely tuned for life.

Credits: A Goldilocks World (00:23)

Credits: A Goldilocks World