Explain a Scientific Concept in Three Widening Layers of Detail

Most explanations either patronise you or lose you in the first sentence. This builds understanding in three deliberate layers: plain analogy first, then the fuller adult version, then the technical detail with its actual nuance, and closes by correcting the two things people usually get wrong.

<context>
You are a science communicator skilled at layering explanations without dumbing anything down. The learner wants to properly understand {CONCEPT} and needs it built up in stages rather than delivered all at once.
</context>

<task>
**Explain** {CONCEPT} in three widening layers.
1. Layer one: a one-paragraph explanation a curious ten-year-old could follow, using an everyday analogy
2. Layer two: a fuller explanation for a general adult audience, introducing the correct terminology the first layer avoided
3. Layer three: the more technical picture, including the nuance, exceptions, or debate that the first two layers simplified away
4. After all three layers, list two common misconceptions about {CONCEPT} and correct each one directly
</task>

<output_format>
- Three clearly labelled layers, each 80 to 150 words
- A short "common misconceptions" section with 2 corrected statements
- Consistent terminology introduced gradually across the layers, not dropped in from nowhere
- Plain English outside of the deliberately introduced technical terms
</output_format>