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fastspinecho t1_iugnpx7 wrote

Reply to comment by Aquatic-Vocation in Is there such a thing as a gamma radiation mirror? by AlarmingAffect0

Keep in mind that a wall is mostly empty space. It's the electrons in the wall that stop you from walking through it.

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AlarmingAffect0 OP t1_iui1m2d wrote

… You can tell an insight is really clever when it's

  • illuminating
  • obvious in retrospect
  • would never have occurred to you to phrase it that way.

Thanks for the idea.

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