Quantum particles do not possess a defined location until they are measured, a principle rooted in the Copenhagen interpretation of quantum mechanics. Measurement involves placing a detector in a random location; if the detector activates, information about the particle's position is obtained. This process is analogous to locating an object, such as an Easter egg, based on prior knowledge or assumptions about its existence. The absence of a measurable position does not imply that the particle does not exist; rather, existence is an underlying assumption in quantum mechanics.
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... the concept of "position" only makes sense if the position has been detected.What Does It Mean Particles Only Have Location if Measured?
... you put a detector in a random location. If it goes off, then you have just measured stuff about the particle. If it doesn't - then you have some other knowledge about the particle (i.e. it wasn't there) ... you never been on a treasure hunt? How do you locate an easter egg that is hidden?if you don't know where a particle exists, then how can you even measure it?
If you don't know where the particle is, you are still presupposing it's existence. It's existence is an axiom of the problem. No point doing the math for particles that don't exist.And what does it mean they don't normally have location? If not, how do you know they even exist at all?