Who else is being confused by it? Physicists and those studying the subject know very well that energy isn't this other thing, tangibly out in the world. No one is actually reifying it in any substantive way. What are the supposed confusions resulting from this? The actual ones, ones that really do - in the real world - cause confusions and errors in thinking. — MindForged
Probably anyone attempting to understand the universe will be confused by it at some point, unless one doesn't mind about inconsistencies. We talk about kinetic, potential, chemical, thermal, mechanical, dark, gravitational, electromagnetic, electrical, magnetic energy, we talk of energy being converted, energy being stored, of something moving because it has energy, of something being hot because it has energy, of matter being made of energy, of energy converting into matter and matter converting into energy, of energy being conserved, of energy density curving spacetime, of pure energy, then one asks, ok so what the hell is energy?
One may look up on Google, what is energy? There you're told that energy comes in different forms, energy is a conserved quantity, energy is in everything, ok then what the hell is it? Then you find some definition, energy is the ability to do work, or the capacity to do work, then you look up 'work' and you find that it is moving something against a force, ok so then what is force? You look it up and you find that it is a push or pull on an object, then you look up the definition of push and of pull and you find that it is to exert force on something. So energy is defined as the ability to move something against a force, and force is defined circularly, so you still don't know what it is, you just have this vague intuitive notion of force, but something seems amiss.
Then even if you're content with the definition that energy is the ability to move something, what the hell does it mean for matter to be made of the ability to move something, what does it mean for the density of the ability to move something to curve spacetime, what does it mean for the ability to move something to convert into matter, what does it mean for the ability to move something to be pure? I honestly believe that those who aren't confused by it aren't because they don't think much about it. And that many students give up about physics because they end up believing they are confused because they are too dumb to understand rather than because the concept is used in confusing and inconsistent ways. A bunch of people end up believing they are too dumb to understand things, and end up relying on the words of authorities who in appearance know better, but really they don't.
...Because space is expanding? Or more specifically, the metric governing the geometry and size of the universe is increasing (the metric tensors change over time), so calling that expansion is perfectly sensible. — MindForged
Sure you can call it expanding space, the problem is then when professional physicists are asked, if two galaxies far away are somehow tethered so as to remain at a constant distance and then the tether is removed, what would happen? As it turns out many believe expanding space would push them away, because they reify it as some tangible thing actually stretching or being constantly created everywhere, while expanding space does no such thing, it is merely galaxies moving away from each other because of their velocity (not taking into account the possible accelerated expansion which here would involve an acceleration).
Expanding space is merely galaxies moving away from each other because of their receding velocities, no acceleration involved, no tangible space being stretched or created, how many people who hear of expanding space understand that? Very, very few.
Just pointing out things are constituted from smaller things doesn't mean understanding those smaller things will allow one to understand everything about what they make up. — MindForged
Do you think that your experience of the color red is made of elementary particles? If it isn't made of particles then what is it made of?