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1. Jabavu+(OP)[view] [source] 2020-04-27 01:08:34
Man, you and the other what-are-fields post just started me thinking about whether diffusion and fields are just things bumping into things. I know that at the QFT level things like the classical E-field can be expressed as interchange of mediator particles. But then QFT says it's all fields. Hmm...
replies(1): >>andrep+s2
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2. andrep+s2[view] [source] 2020-04-27 01:38:07
>>Jabavu+(OP)
QFT says it's all fields because it is. Particles simply cannot explain the conjunction of quantum mechanics with special relativity.
replies(1): >>iamevi+IX
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3. iamevi+IX[view] [source] [discussion] 2020-04-27 13:31:09
>>andrep+s2
I am not so sure about that. When you imagine a "particle", what do you see? Do you see a collection of balls?
replies(1): >>andrep+9D2
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4. andrep+9D2[view] [source] [discussion] 2020-04-28 00:46:09
>>iamevi+IX
How do you mean?

To clarify: a "point particle" is an object with no internal structure, that is, it can be fully described by its coordinates wrt time (ignoring relativity for now). This is a concept, a model which explains many phenomena, a model on top of which you can build many theories. It does not, however, explain the conjunction of QM with special relativity.

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