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"...human physical memory is only 7 years long. Thereafter there are only memories of memories, which often get twisted in the weirdest of ways." I hate to be

"...human physical memory is only 7 years long. Thereafter there are only memories of memories, which often get twisted in the weirdest of ways." I hate to be that guy, but... you have no idea what you're talking about.

timonoko 5y ago
All human cells are replaced every 7 years. Known fact. Or was.
- travisjungroth 5y ago
  That's the average. Some brain cells don't churn as fast (or maybe at all?). The memory-of-a-memory thing isn't on a 7 year scale either, but does happen. I don't remember the exact science, but I do remember the metaphor I came up with (evidence in my favor!). Remembering something is like pulling a note out of a cabinet. It gets saved from the back, where the papers tend do degrade. Then, it gets put at the front. The trick is, the original note isn't put at the front. A copy is made. So remembering tends to reinforce, but also can change during this lossy copying process.
  - tonguez 5y ago
    "Some brain cells don't churn as fast" None of them "churn". "The memory-of-a-memory thing" That "isn't a thing". "I don't remember the exact science" You also have no idea what you're talking about. "I do remember the metaphor I came up with (evidence in my favor!)" I have no words. "Remembering something is like pulling a note out of a cabinet." Not really, no. "lossy" Please just stop. "copying" Memory is a "copying process"? Please guys... please just stop.
    - travisjungroth 5y ago
      Jeez it was just a light-hearted comment. I think you can address your doubts about what I wrote with more kindness and less snark. > None of them "churn". By churn I mean "lose and hopefully be replaced". That definitely happens. Some brain cells die and are replaced, some live your whole life (or die first)[0]. The cabinet is just a simile for cued recall[1]. More recently learned/recalled items are remembered better (front of the cabinet)[2]. Recalling memories in a different context can change them[3], suggesting recall isn't a "read only" operation. [0] https://www.livescience.com/33179-does-human-body-replace-cells-seven-years.html https://www.livescience.com/33179-does-human-body-replace-ce... [1] https://en.wikipedia.org/wiki/Recall_(memory)#Cued_recall https://en.wikipedia.org/wiki/Recall_(memory)#Cued_recall [2] https://memory.psych.upenn.edu/files/pubs/KahaMill10.pdf https://memory.psych.upenn.edu/files/pubs/KahaMill10.pdf [3] https://news.northwestern.edu/stories/2012/09/your-memory-is-like-the-telephone-game https://news.northwestern.edu/stories/2012/09/your-memory-is...
- tonguez 5y ago
  OK? Is it my turn to say something irrelevant? Here goes: Elon Musk is worth $200 billion. Known fact. Or was.

timonoko 5y ago

All human cells are replaced every 7 years. Known fact. Or was.

travisjungroth 5y ago
That's the average. Some brain cells don't churn as fast (or maybe at all?). The memory-of-a-memory thing isn't on a 7 year scale either, but does happen. I don't remember the exact science, but I do remember the metaphor I came up with (evidence in my favor!). Remembering something is like pulling a note out of a cabinet. It gets saved from the back, where the papers tend do degrade. Then, it gets put at the front. The trick is, the original note isn't put at the front. A copy is made. So remembering tends to reinforce, but also can change during this lossy copying process.
- tonguez 5y ago
  "Some brain cells don't churn as fast" None of them "churn". "The memory-of-a-memory thing" That "isn't a thing". "I don't remember the exact science" You also have no idea what you're talking about. "I do remember the metaphor I came up with (evidence in my favor!)" I have no words. "Remembering something is like pulling a note out of a cabinet." Not really, no. "lossy" Please just stop. "copying" Memory is a "copying process"? Please guys... please just stop.
  - travisjungroth 5y ago
    Jeez it was just a light-hearted comment. I think you can address your doubts about what I wrote with more kindness and less snark. > None of them "churn". By churn I mean "lose and hopefully be replaced". That definitely happens. Some brain cells die and are replaced, some live your whole life (or die first)[0]. The cabinet is just a simile for cued recall[1]. More recently learned/recalled items are remembered better (front of the cabinet)[2]. Recalling memories in a different context can change them[3], suggesting recall isn't a "read only" operation. [0] https://www.livescience.com/33179-does-human-body-replace-cells-seven-years.html https://www.livescience.com/33179-does-human-body-replace-ce... [1] https://en.wikipedia.org/wiki/Recall_(memory)#Cued_recall https://en.wikipedia.org/wiki/Recall_(memory)#Cued_recall [2] https://memory.psych.upenn.edu/files/pubs/KahaMill10.pdf https://memory.psych.upenn.edu/files/pubs/KahaMill10.pdf [3] https://news.northwestern.edu/stories/2012/09/your-memory-is-like-the-telephone-game https://news.northwestern.edu/stories/2012/09/your-memory-is...
tonguez 5y ago
OK? Is it my turn to say something irrelevant? Here goes: Elon Musk is worth $200 billion. Known fact. Or was.