Comment by jagged-chisel
3 months ago
No it does not dictate such. And you’re describing “the observer effect.”
Heisenberg says the more accurately you measure one property, the less accurately you can measure a second [related] property. The usual property pair used in explaining the principle are position and momentum.
> Heisenberg says the more accurately you measure one property, the less accurately you can measure a second [related] property.
mmm you've redescribed what the parent post was saying.
Heisenberg's principal is about the _knowability_ and not the measurement. So it's fundamental regardless of whether you measure it or not.
This is why it's impossible to cool something to absolute zero. Because fundamentally, it's position is becoming knowable, so it gains momentum, regardless if it's being measured or not.
I didn’t. As I said, taneq mentions the observer effect. This is not the same as the Heisenberg Uncertainty Principle.
Doesn't measurement == knowability ?
like you don't truly know something until you measure it?
Knowability directly means "ability to know" meaning whether you are even able to know it at all i.e. you can/can't ever know it.
The Heisenberg uncertainty means you can't know it (i.e. it's not a value/property exists to extract), regardless if you try to measure it.
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There is no cause and effect in Heisenberg, nor due to it.