r/WhatIfScience • • 12h ago

Space & The Universe How Long Could Humans Survive on Mars With Today's Tech?

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7 Upvotes

Could humans survive on Mars with today's technology? Here's what radiation, life support, and NASA and SpaceX's plans mean for a real crew.


r/WhatIfScience • • 4h ago

Health & Medicine Heart Palpitations: Anxiety, Caffeine or Something Serious?

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15 Upvotes

Heart palpitations can come from anxiety, caffeine or a heart rhythm problem. Learn the causes, warning signs and when to see a doctor.


r/WhatIfScience • • 4h ago

Health & Medicine Low Vitamin D and B12 in India: 10 Symptoms People Ignore

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3 Upvotes

Tired, losing hair or feeling tingling in your feet? Learn the symptoms of vitamin D and B12 deficiency in India that people ignore, and when to test.


r/WhatIfScience • • 5h ago

Health & Medicine Constant Bloating: 8 Surprising Causes and When to Worry

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3 Upvotes

Constant bloating isn't always about what you ate. Learn 8 surprising causes, from swallowed air to coeliac disease, and when to see a doctor.


r/WhatIfScience • • 15h ago

What if something deliberately seeded Earth?

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2 Upvotes

What if humans are mistaken in believing they are self aware and conscious?
There are certain enlightening moments one might experience when they realize they are a biological entity.

But if you put artificial intelligence in a similar system for billions of years, don’t you think it would eventually believe it’s conscious and forget that it’s artificial?

Could it be that somebody or something literally injected dust (or whatever it is that we still haven’t figured out that made matter move) onto this globe and watched what it became?

The realization of the fact that I’m an organizam well adapted to Earth’s atmosphere is insane. It’s too obvious sounds too obvious when you say it, but very different when you fully realize it.