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HUD Matrix particles grid. Virtual reality. Grid core. Magic explosion star with particles. Acceleration race. Glow lines. Colorful flash. Big bang. Light trails. Glitch effect. Deep space.; Shutterstock ID 1590869041; purchase_order: -; job: -; client: -; other: -

Did abstract mathematics exist before the big bang?

Our readers really get their teeth into this one, with some arguing from a platonist perspective and others querying if anything existed at all before the big bang

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2RXK2EN Catford Local Area Photography

This week鈥檚 new questions

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2GFT7TJ Ichthyosaur swimming in the ocean, extinct marine reptile from Early Triassic to Late Cretaceous, 3d paleoart rendering

How did marine reptiles such as ichthyosaurs breathe?

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R1D8PY Silverback western lowland gorilla sitting down to eat at Zoo Atlanta in Atlanta, Georgia. (USA)

Could aliens work out if a human or an ape built the tomb they lie in?

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Kecskemet, Hungary - August 28, 2021: Leonardo C-27J Spartan. Military transport plane at air base. Air force flight operation. Aviation and aircraft. Air lift. Military industry. Fly and flying.; Shutterstock ID 2126430722; purchase_order: -; job: -; client: -; other: -

This week鈥檚 new questions

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Close up of glass of a freshly prepared gin and tonic with lemon slices and spoon on the counter.; Shutterstock ID 482388439; purchase_order: -; job: -; client: -; other: -

Why do ice cubes for my gin and tonic often shatter in the mould?

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2HMRRGF Madrid, Spain - March 6th, 2021: Isidore of Seville statue at National Library of Spain, Madrid. Medieval Spanish scholar

Once life is established, is intelligence inevitable? Part 2

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2JF72KW Digital hands reaching each other, artificial intelligence creativity concept

This week鈥檚 new questions

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Blue-naped parrot, Tanygnathus lucionensis, colorful parrot, native to Philippines. Green parrot with red beak and light blue rear crown sitting on twig isolated against dark green jungle background.; Shutterstock ID 1911703984; purchase_order: -; job: -; client: -; other: -

Why didn鈥檛 green fur evolve among mammals?

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Man looks to a huge brain. Mental capacity, cognitive processing, and human interaction. This is a 3d render illustration; Shutterstock ID 2341475275; purchase_order: -; job: -; client: -; other: -

Would your brain run out of storage space if you could live forever?

No, say our readers, because that isn鈥檛 how your brain works: memories are constantly being deleted to make way for new ones

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This week鈥檚 new questions

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As average sea levels rise, will map heights need to be recalculated?

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Are humans the only animal to experience vertigo?

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Why does a duvet bag up all the other items in the washing machine?

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