Path: news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail
From: Julio Di Egidio <julio@diegidio.name>
Newsgroups: sci.physics
Subject: What is "uncertain" in quantum physics?
Date: Sun, 18 May 2025 19:28:59 +0200
Organization: A noiseless patient Spider
Lines: 11
Message-ID: <100d5cr$105b1$1@dont-email.me>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Injection-Date: Sun, 18 May 2025 19:29:00 +0200 (CEST)
Injection-Info: dont-email.me; posting-host="d17785af46d0c77264e2509b98c2a59d";
	logging-data="1054049"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1+YRxu/v4w8qSdKNXrEoUgzs+GGKt55Bjw="
User-Agent: Mozilla Thunderbird
Cancel-Lock: sha1:wfV1kFWkUJuwZRGbKvuQjOAFdg0=
Content-Language: en-GB, it

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