Comment by whycome
Comment by whycome 11 hours ago
Caloric. Dark matter. Cosmological constant.
We like placeholders for the unknown.
Comment by whycome 11 hours ago
Caloric. Dark matter. Cosmological constant.
We like placeholders for the unknown.
Right, but you can push unknowns into tmp vars only so much before you have to introduce constraints, otherwise it's all downright undetermined. You have to inject a structure into the placeholder soup or you're just pushing ambiguity around with no real net gain.. which is also fun to play around, question is will you get a paper out of it or even paid if you play like that to no end.
Maybe, (I don't know), but it's easy to accidentally come up with a theory of "mysterious stuff" that appears to explain something, but neither constrains your expectation nor provides predictions.
Phlogiston is the classic example. https://www.lesswrong.com/posts/RgkqLqkg8vLhsYpfh/fake-causa...
Its a process.
You find some un-identified variables.
Form some hypothesis, try to narrow it down.
Sometimes it is a discovery, new particle, and sometimes it is nothing.
But that is how science works.
At some point in time, everything was an unknown, and people had to work with unknowns.
This whole movement from the 'right' that all science has to know the answers ahead of time in order to justify spending money, is hindering progress. How can you know the results are worthwhile, in order to justify funding, before doing the research to know the results?
Virtual particles and related effects are actually widely accepted and experimentally proven (at least partially). Current physics wouldn't really work without them, or at least something that looks the same.
https://en.wikipedia.org/wiki/Casimir_effect
https://en.wikipedia.org/wiki/Zero-point_energy
https://en.wikipedia.org/wiki/Virtual_particle
https://en.wikipedia.org/wiki/Hawking_radiation
The gist of it is, that quantum mechanics prevents vacuum from really being empty. Any finite-size system or any system with some kind of influence/force/anything will have a lowest energy state that is not actually zero energy but slightly above. Which means that this non-zero can fluctuate and on occasion pair-produce and pair-annihilate particles (probability inversely depending on pair energy).
And yes, this sounds like some kind of ether...
You're probably thinking of the de Broglie-Bohm pilot wave theory, where there are actual particles with determinate trajectories at all times, which are probabilistically guided by a wave. I think they main problem with this idea is that it can't be made relativistically invariant, and so it can only be used for systems with low realtive velocities of its components.
OTOH de Broglie for one of the central ideas in the development of quantum mechanics: he inverted Einstein's idea about photons, which were previously thought to be waves but Einstein showed how they came in particle-like quanta. de Broglie realised you could apply the same thinking to matter, which had previously been thought of as particles, and describe them using waves. Subsequent observation of wavelike dynamics (diffraction) of electrons in the Davisson-Germer experiment got de Broglie the Nobel prize.
Isn't that how equations get solved?
Pretty much anything known entered through such placeholder, it's just that equations could be connected more easily.
It's not like Higgs field is something you can directly observe