BilliardsBall
Veteran Member
You and your metaphysics, again.
Metaphysics is a BS philosophy, because it is frequently misused and misunderstood, especially when people like yourself try to mix it with empirical/experimental science, or with maths.
Experimental science do use maths, but as a useful tools, not as “eternal” law, and it is not a “be all solution”. Maths don’t have all the answers.
In the real world, nothing is perfect, and reality can change.
Science required real world information, and that mean observations, eg finding evidences in the field or performing “x-number of” experiments or tests in the lab.
Newton’s theory on mechanism, of motion, gravity and forces, it works fine, in the real world, and on day-to-day basis, with the equations and formulas.
However it is not perfect, especially when it concern the bodies outside of our Solar System, and even outside of our galaxy. The classical Newtonian theory of gravity is insufficient and updating, and Einstein made those changes, in which General Relativity give us understanding of the universe outside of Local Group.
It is with Einstein’s field equations of General Relativity and the FLRW metric (Friedmann-Lemaître-Robertson-Walker metric), that scientists were able to determine the universe have been expanding since the “Big Bang”, mathematically.
But it wasn’t the maths alone that change the Big Bang from “hypothesis” to a fully fledged “scientific theory”; no, it was the evidences that determine:
- The observing of galaxies moving away from each other, was determined by the wavelength of electromagnetic appear “redshifted”. It was predicted by Howard Percy Robertson, in 1924-25, and discovered by Edwin Hubble in 1929.
- And the evidence of the Cosmic Microwave Background Radiation (CMBR), which was predicted in 1948, by Ralph Alpher and Robert Herman, and discovered by Arno Penzias and Robert Wilson in 1964. More detailed mapping of CMBR, came from the WMAP and the Planck missions.
Meaning the Newtonian gravity don’t apply in the study of deep space and the universe.
Newtonian gravity and mechanism also don’t work with particles, smaller than protons, which is where Quantum Mechanics come in.
There are lot of mathematical equations within Quantum Physics, but it is the testable “evidences” that make it real, not just the maths.
If the Newton’s theory on gravity (and its maths) was eternal, then it should have applied to massive astronomical bodies (eg stars, galaxies, etc), or to objects smaller than the hadron particles (eg smaller than protons or neutrons, like quarks, leptons, bosons, etc)...
...well, it doesn’t.
Sometimes maths work, but sometimes they don’t.
If maths were perfect, and work every single time, then there would only be constants, no variables.
But the world is perfect, nor are every equations.
I never said "math has all the answers" as you wrote above, although I absolutely would say that non-Newtonian physics is always thought about by physicists using LOGIC. Physicists don't stop being careful or logical when studying quantum physics and etc. And even when objects seem to behave in non-Newtonian ways and non-intuitive ways, people think through the issues using logic.
My point is, and I'm sorry if it hasn't been clear yet, so I'll rephrase...
Science cannot prove anything without first holding as true:
* Truth exists
* Falsity exists
* Things may be proven or disproven
Thus, science sits atop logic (and math, too, if you like).
Logic and math are good tools as you wrote. They also reveal proofs, confirm theories, and show men truth. To disagree with this is illogical.
Skeptics tell me that only physical, empirical, measurable, falsifiable things exist.
Are math and logic physical (have mass or weight)? No
Are they empirically assessed? No
Can you measure math and logic using empirical tools? No
Can you falsify math and logic and disprove them? No, because to disprove logic, you must first assert "A thing [logic] cannot be both false and true simultaneously, and may be proven false or proven true", which is, of course, asserting the logic law of noncontradiction.
My point is simple, as I (hope) you realize:
Since the definition of metaphysics includes "of or relating to the transcendent or to a reality beyond what is perceptible to the senses", once you admit math and logic are EXACTLY that definition, REAL and TRUE but not perceptible to the senses, they cannot be seen, handled, tasted, touched, measured, affected by gravity, etc. ...
... Once we agree to the obvious, axiomatic, logical truth that math and logic are metaphysical.
We can see if other metaphysical things, even living beings, exist.