Sujet : Re: WM and end segments...
De : james.g.burns (at) *nospam* att.net (Jim Burns)
Groupes : sci.mathDate : 26. Jul 2024, 10:46:44
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <1149c271-c379-4be1-9778-babbb544cc32@att.net>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
User-Agent : Mozilla Thunderbird
On 7/25/2024 6:46 PM, Moebius wrote:
Am 25.07.2024 um 06:41 schrieb Chris M. Thomasson:
However, if a tree falls
and no one [and no device] is there
to hear [record] it,
does it make a sound? :-P
>
Who knows? :-)
If a virtual particle with energy < ∆E
exists for a time < ∆t
_too short to observe_ ∆E⋅∆t < ℏ/2
can we know it exists?
Yes, we know.
Its existence has consequences
to spectral lines and such as.
Some consequences we are clever enough
to identify and to observe,
even if it is impossible to observe the particles.
https://en.wikipedia.org/wiki/Lamb_shiftetc.
Our many.times.great.grandparents tracked
prey they hadn't seen
by the observation of a bent branch.
Consequences of the prey passing by.
That worked well enough to wipe out
a lot of delicious species.
A million times we observe
a tree falling in the forest,
a great, crashing roar, and then
a tree lying on the ground.
Consequences.
We embrace the theory that
reality doesn't give a s#!t
whether we observe or we don't observe.
By that theory, the tree made a noise.
Either that's a thing we know,
or we don't know anything,
like we don't know that
Descartes' demon hasn't deceived us
about nearly everything 'known'.
I propose that
life (apparently) is too short, and
we should consider things 'known' to be known,
and fallen trees not.seen.falling
to have made a sound.