@jeeprs,
Thank you for your reply, jeeprs :flowers:
jeeprs;116463 wrote: ~ "Is there any*thing* fundamental? Must there be? Why should there be? Reality objectively varies depending on the point of view of observation: place, time, methods, instruments, embeddedness. It is what it is." ~
But the whole point of philosophy as it started out was to find the true substance, or basis, of reality. If you say 'it is what it is' then you've more or less abandoned the task of philosophy at the outset, haven't you?
Not quite. But I am distinguishing ontological
existence, as it is without our presence, without our consciousness, without our biological capabilities and limitations, from our phenomenal
realities, that we might better know. To me, there is ontological existence, and epistemic reality. Scientific
interpretation gives us clues to imagine what raw existence might be like, and what it cannot be.
Personal and scientific observations create, describe, and measure reality as it
then appears to be. Reality has many scientifically objective forms. Depending on theories and measuring instruments, the Sun might be a fuzzy teardrop-shaped plasma cloud perhaps a light-year across with a gravitational concentration where we ordinarily see it to be. Or it might be a fusion reacting shell gravitationally crushed by the surrounding hydrogen fuel. Or it might be the cool dust shell that emits our visible sunlight.
But back to your question. Classical materialism was concerned with the nature of imagined fundamental substances - fire, air, water, earth, and atoms. Modern materialism still thinks in terms of atomic matter that makes up objects. This prejudice to always see objects is where the materialist's problem lies. Is a thought an object? Is the universe?
When physics found that all is made of energetic quantized fields, it became apparent that there is no solid substance. What can be imagined as particles are just twists in the fabric of spacetime. Like concentric ripples in a pond, but organized by interactions.
Quantum properties ensure that macroscopic objects cannot be permanent but must be constantly changing, only with a long lifespan compared to us. Objects move, decay, evaporate. All is change, Heracleitos lives, Parmenides is dead. Sort of. We can still take pictures and look at things as they used to appear.
But then why isn't materialism dead? The same reason that realism still lives 400 years after Galileo. It is practical. It is useful to simplify our mode of thinking about the world as it appears in its various guises. We can still model the changing world as if it were a series of still pictures with great success. We don't usually need to be aware of the properties of motion, of relativity of events and history, of observer effects, of electromagnetic fields, or of spacetime. Most of the time the Earth looks quite flat.