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Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: x <x@x.org> Newsgroups: sci.physics Subject: Re: What is "uncertain" in quantum physics? Date: Sun, 18 May 2025 18:10:58 -0700 Organization: A noiseless patient Spider Lines: 38 Message-ID: <100e0f3$18pob$2@dont-email.me> References: <100d5cr$105b1$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Mon, 19 May 2025 03:10:59 +0200 (CEST) Injection-Info: dont-email.me; posting-host="9968ffcd1e06e5fd3038782d472774b8"; logging-data="1337099"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18ugFYc9euAiENLd+4WXApD8XtRui5USu0=" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 Cancel-Lock: sha1:VwfVyw+2vl5Ftnn1R7IZ8YYkbX8= Content-Language: en-US In-Reply-To: <100d5cr$105b1$1@dont-email.me> Bytes: 2570 On 5/18/25 10:28, Julio Di Egidio wrote: > Why shouldn't we think of the Uncertainty Principle as just a statement > about the limits of observation, rather than about something objective, > especially as in causing some non-zero vacuum energy? > > Is there some experiment that settles "uncertainty" as something "really > there"? In particular, I am not sure if the expansion of the Universe > is such evidence, or rather a consequence of the theory. > > Thanks for any insight. > > -Julio Interesting. A statement or question actually about physics. If something is 'quantized' in quantum mechanics it is actually there are not there. Take an electron. It actually has a specific rest mass or charge. It does not have an infinite number of fine degrees of mass or charge. If one were to form from say high energy electromagnetic radiation and an anti-electron, it would not just partially form a partial quazi-electron. This uncertainty about forming or not forming is called an 'Uncertainty Principle'. Then there is all of this degenerate philosophy about how nothing can every be truly certain or known. This is flatulence and defecation produced by physicists in the early 20th century. I would suggest that you do not worship this flatulence and defecation. Just notice that in the world of the very small, some things are 'quantized' (in other words, there are not an infinite number of fine degrees of rest mass or charge than an electron can have).