ELI5: What does radiation physically do to the body that can lead to cancer?

I’ve heard about radiation exposure from nuclear waste, fallout, and compensation programs. What is radiation actually doing inside the body and why do dose, exposure time and type of radiation matter?

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u/clearwater-orchid — 3 days ago

Could intelligent life exist in the microscopic world the same way it might exist out in the galaxy?

I know bacteria and microbes can do surprisingly complex things, like slime molds solving mazes to find food, and I’m sure there are plenty of other examples. But I’m wondering more about scale itself.

Since the galaxy is huge and mostly empty space, we imagine there could be intelligent life somewhere out there. Is there any remotely plausible version of that idea going in the opposite direction, where the microscopic world could contain some kind of intelligence or “world within a world”?

Or does physics/biology basically rule that out because things eventually get too small to support enough complexity?

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u/clearwater-orchid — 4 days ago

ELI5: Is there an objective difference between designer perfumes and cheaper “dupes” or is it mostly branding?

Is it about ingredients, safety, quality control, how long the smell lasts or how the scent changes over time? Or can two perfumes be almost impossible for most people to tell apart while still being meaningfully different?

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u/clearwater-orchid — 4 days ago

What do people mean when they say: "The AI bubble will burst"?

I am trying to understand what "bubble burst" actually means, as well as why are people making this prediction. Or I hear: I can't wait until the bubble bursts as if its around the corner. Does it mean very broadly that it will fail or what are the implied specific circumstances leading to that outcome?

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u/clearwater-orchid — 11 days ago

How distinct are all these new corporate "AI agents" under the hood?

I see AI agents everywhere now, from Instacart to Confluence to banking apps, and I was curious to know how they actually work behind the scenes. Are they mostly built on the exact same underlying models, or does each company code their own? If multiple companies use the same model, what stops them from acting exactly the same? Also, do they all benefit when the base model gets updated in the case they are running isolated versions? I'd love to know if they share any of the same training data or if each company's system is kept completely separate to what extent.

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u/clearwater-orchid — 11 days ago
▲ 1.1k r/MetalsOnReddit+1 crossposts

ELI5: Why did plastic replace so many traditional materials, and how did that success create microplastics concerns?

I know cost is part of the story, but I'm curious what other factors made plastic so dominant over materials like wood, metal and glass across everything from packaging to cars to clothing. Were the same qualities that made it so successful also what eventually led to microplastics becoming such a big concern?

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u/Then_Marionberry_259 — 19 days ago

ELI5: Why does the golden ratio seem to show up everywhere in nature and art, and what does it actually mean?

I hear and agree that the golden ratio is considered really beautiful/pleasing and that it appears in things like flowers, seashells, and even human anatomy. At the same time, we're really good at recognizing patterns and sometimes finding them where they don’t really exist.

It's been noted too that artists and architects have used it throughout history, and that similar proportions seem to emerge naturally even in modern designs, even music (?). So how common or enigmatic is the golden ratio actually? Is it genuinely a special mathematical relationship with deep significance, or do we tend to exaggerate its presence? And what, if anything, does the golden ratio tell us about math and the natural world?

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u/clearwater-orchid — 20 days ago

Am I the only one who feels disappointed when a text has clearly been written with AI?

I've been seeing it all the time, straight out of Chat GPT. LinkedIn is flooded, but also on the silliest thing like an online comment.

  • It's the —excessive— em-dashes—,
  • 'It's not just X; it's Y"
  • Straight: don't vs Curly: don’t
  • The single Unicode ellipsis like this: … vs three dots: ... when it gets typed
  • When there is a comma or full stop inside quotations "and this," when people usually don't type it like that.
  • The text is too wordy and perfect.

People's voices are getting lost. I miss the times when you would just get to know someone's personality kind of based on how they write, typos and all. Now it's just washed away.

Am I the only getting this feeling, anything else stands out to you? or is it because the main points are included and prompted, that makes it 'whatever', like it's about the core message not the delivery?

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u/clearwater-orchid — 20 days ago

Is “rich people will leave if you tax them more” a real economic concern, or is it mostly exaggerated?

I‘m all for fairness, but I‘m confused about this argument. If very wealthy people or companies leave a country because taxes go up, wouldn‘t they potentially take investment, businesses or jobs with them?

Is that actually a serious downside economists worry about, or do people exaggerate it?

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u/clearwater-orchid — 22 days ago