Note what-appears-to-you is never THAT-which-appear.RCSaunders wrote: ↑Sat Jan 04, 2020 4:12 pmHenry's right. An apple is an apple and it is the realistic thing the sciences have to study to discover, the "molecules, atoms, protons, electrons and quarks," which are only explanations of the nature of the actual apple, just as it appears on the table.Veritas Aequitas wrote: ↑Mon Dec 30, 2019 5:56 am Consider this, it would be more realistic to say,
I ate [interacted] with that identified "cluster of molecules, atoms, protons, electrons and quarks which could be waves or particles"
that to say, I ate that 'apple'.
Agree?
Without the very real apple, their could be none of the scientific, "models," of, "molecules, atoms, protons, electrons and quarks."
How do you know what-appears-to-your-mind is really the That-which-appear.
There is no certainty what you think is the 'real apple' you see is really a real apple.
Read this from Bertrand Russell;
Ch. I: Appearance and Reality
https://en.wikiquote.org/wiki/The_Probl ... nd_Reality
To be a serious philosopher, one cannot banked solely on common sense, but rather should use the 'philosophical sense'.Is there any knowledge in the world which is so certain that no reasonable man could doubt it?
This question, which at first sight might not seem difficult, is really one of the most difficult that can be asked.
When we have realized the obstacles in the way of a straightforward and confident answer, we shall be well launched on the study of philosophy—for philosophy is merely the attempt to answer such ultimate questions, not carelessly and dogmatically, as we do in ordinary life and even in the sciences, but critically, after exploring all that makes such questions puzzling, and after realizing all the vagueness and confusion that underlie our ordinary ideas.
Not only Russell questioned 'what is the real table' he raised the doubt;
There is no need for a real apple or other physical object for scientist to study "models," of, "molecules, atoms, protons, electrons and quarks."Among these surprising possibilities, doubt suggests that perhaps there is no table at all.