Rothbard’s Disciple -
“but the food still objectively and with certainty exists.”
Is there a physical intermediary between the food and your eyes that you call light? How do you know the food exists when you believe that something has to travel between it and your retinas? What you are saying is that you strongly infer that the food exists because you are looking at it. This also implicitly assumes something about the definition of “existence,” namely that existing things have the potential to influence other existing things. The food influences the light which influences your retinas. The assumption is that this all occurs independent of any thoughts about it.
“Also, let’s say person X is eating lunch in England. I may not perceive it, but it is an the object of reality. And if I perceive it, that object of reality becomes the object of perception. (On which I may have many subjective thoughts, such that their meal looks delicious).”
Whether or not they are eating lunch in England in no way depends upon your thoughts or observation of it. If you observe them eating, your sensory faculties are somehow producing an image within your experience. That image is not the same thing as the people eating, you assume that if you think the facts about their lunch of not contingent upon your thoughts/observations. I can reinforce that by pointing to the general belief that there is some physical intermediary we call light which explains how the information about the objects traverses a distance. What we point to in perception, ie, a sensory observation, is assumed to be different than the “objects of reality” which are the way they are even though you aren’t in England to attempt to verify it.
Existence in general is when you treat something in your experience as being a representation of something other than the immediate experience. I assume that the moon I imagine is not the “real” moon because the real deal doesn’t care whether humans are there to look at it.
This forever severs us from the “facts of reality.” We assume that there is a reality beyond our ideas and thoughts, and we infer things about that reality based upon what we observe. Our knowledge, ie, immediate experience, never meets “reality” but only the models we formulate to understand it.
In the conext of physics, this demands that the qualities we apply to this external existence be imaginable. If I can’t imagine what exists, and what is responsible for the explanation, then I can’t imagine the explanation. If I can’t understand unambiguously what “warped spacetime” means for example, then I have no ability to understand how or why the Earth is held in rotation by the Sun. What is it that pushes on the Earth? Does it have a surface? This has led me to conclude that the only inherent quality of a physical object is its shape. All the definitions of physics can be derived from physical shape (ie, that which occupies space) and space (formlessness, emptiness, nothingness), and as a result these definitions can be used consistently in the course of an explanation, or in connecting that explanation to the observations/evidence/experiments.
In the conext of economics, this demands similarly that what we are saying exists can be imagined. We can imagine the difference between a mindless robot and a sentient human being. The human makes value judgments, experiences profit and loss, consciously conceives of possible future states of affairs and consciously formulates means and a plan to arrive at the desired end, etc. I’m not sure how much Mises would agree with everything I am saying here, but I think the whole reason he was able to discover economic explanations was because he zoned in on that notion of “what exists.” What is really out there? The concept of human action is just the picking out of the qualities inherent to an action, separating them and recognizing their distinctions. I imagine that this required enormoues effort on the part of Mises, but lucky for us once discovered it was easy to communicate. The facts of human actions are not open to us, we assume that they occur and that they entail certain thingsentering into the field of the actor’s awareness, such as means, ends, planning, etc.
It’s possible that physics and economics, although different in their assumptions about existence, share a common methodology. The often held critique against Austrian economics, ie, that it is unscientific because economic theory cannot be falsified or verified, holds no water in this world view. Explanations deal with existence, and the existence “out there” is assumed to be beyond knowledge, ie, one’s immediate experience. Nothing about it can be verified or falsified, we can only attempt to formulate rational explanations for what we observe. I don’t see why there should be any difference between economics and the physical sciences in this respect.