What's wrong with physics? Sabine Hossenfelder

How does science work? And what's all this about quantum mechanics?

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Skepdick
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Re: What's wrong with physics? Sabine Hossenfelder

Post by Skepdick »

Scott Mayers wrote: Wed Feb 09, 2022 2:46 am "Foundational" in this context refers to the fact that such theories are used as the basic assumptions that are used in other theories. I was not even arguing for my own 'foundational' preference. The Big Bang is used as a closed assumption for many other theories built upon it. If the Big Bang is flawed LOGICALLY, as it is regarding lack of a boundary proof, any theory necessarily dependent upon it is also flawed.
The notion of "logically flawed" is incoherent in an instrumentalist world-view.

What's a "flaw"? Why is it a "flaw"? You are holding some normative view of how things OUGHT to be. Let it go!
Whatever you seem to be referring to as a "logical flaw" is an objective semantic property of your mind. Observe it. Understand it. Reify it. Use it to your advantage!
Those who forget good and evil and seek only to know the facts are more likely to achieve good than those who view the world through the distorting medium of their own desires. --Bertrand Russel
Scott Mayers wrote: Wed Feb 09, 2022 2:46 am Axioms are system postulates OF logic. The particular assumption USING the logic are not called, 'axioms' because they are not ESSENTIAL of teh system.
Look at you bickering over nomenclature. I don't give a shit what you call them. Axioms. Inputs. Dependencies - read between the damn lines.

Pay attention to the inherent (essential) semantic properties. You are calling those things "LAWS". You are ASSUMING them to be true, without even for a second questioning whether they could remain true under negation.

That which you ASSUME cannot be negated is an "axiom". Dogma. Foundation. God. Religion. Logic is a religion.
Scott Mayers wrote: Wed Feb 09, 2022 2:46 am Big Bang theory is 'assumed' when it is contradictory logically BUT the Steady State theory was not only not LOGICALLY flawed, it was dismissed in favor of the Big Bang, regardless of its own anti-logical foundation. [ignoring the politics and religious justifications].
Q.E.D

You are biased towards the "logical" and you are biased against the "anti-logical" while failing to recognise that a diffrent type of logic (to the one you are using) is still logic! It's just different.

You are failing to grok that a different foundation (different logic) still produces valid mental instruments.
Scott Mayers wrote: Wed Feb 09, 2022 2:46 am ?? YOU are arguing something else here that is not relevant to physics. I already know your contention with me regarding logic theory.
Dude. I am trying to explain to you why it IS relevant!

I am trying to explain to you that if you start with intuitionistic/constructivist foundations, instead of the classical foundations you will arrive at different state of mind - a different intuition/understanding. Classical foundations have no rigorous notion of infentisimals - quantities so small that they are experimentally indistinguishable from zero. An abstract object that is potentially zero, but not quite zero.

The logic (religion) you subscribe to is the wrong instrument for the job! Throw it away. Start afresh.

http://math.andrej.com/2008/08/13/intui ... r-physics/
Skepdick
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Re: What's wrong with physics? Sabine Hossenfelder

Post by Skepdick »

Scott Mayers wrote: Wed Feb 09, 2022 2:46 am If the Big Bang is flawed LOGICALLY, as it is regarding lack of a boundary proof, any theory necessarily dependent upon it is also flawed.
As a much simpler way to make my point...

You are talking about boundaries and boundedness.

The system spcifically designed for being able to express resource-bounded computations is Linear logic

If you are not using Linear logic in your foundations (and I know you aren't because your snobish religious beliefs around the consistency-axiom prevents you from considering para-consistent logic) , then your are your own worst enemy.

Your chosen formal system is not expressive enough! You have successfully hindered yourself because your biases have arbitrarily excluded useful logical systems from your mental toolbox. Well done!

Once more for effect (accompanied with a slow clap)...
Those who forget good and evil and seek only to know the facts are more likely to achieve good than those who view the world through the distorting medium of their own desires. --Bertrand Russel
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bahman
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Re: What's wrong with physics? Sabine Hossenfelder

Post by bahman »

Veritas Aequitas wrote: Thu Dec 09, 2021 10:54 am Sometimes I faced posters who insist Physics can explain the whole of reality.
However note this reservation from Sabine Hossenfelder.


What's wrong with physics? | Sabine Hossenfelder
https://www.youtube.com/watch?v=8aUk6oi_AmM
After 40 years of stagnation, the truth is now undeniable: physics is failing. Acclaimed physicist Sabine Hossenfelder lays out her plan to regain the once great reputation of physics.
If the universe works accordingly then we eventually find the laws of nature.
socrat44
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Re: What's wrong with physics? Sabine Hossenfelder

Post by socrat44 »

" . . . physicists in the foundations mass-produce math fiction that
hasn't led anywhere for 50 years, and it isn't an opinion either.
It's a fact and it's about time they do something about it."
/ Sabine Hossenfelder /
https://twitter.com/skdh/status/1453598133917736961
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