[Guille]

Assume that Energy is Matter. Both things are exactly the same, E=M. But don't be confused, I don't mean mass, I mean matter. So your body is energy.

How would the world be?
What would the assumption impply?
Would the laws of thermodynamics still work?

As the particles of matter cannot be destroyed, then I believe that the laws of thermodynamics still would work.

[harmonygirl]

so if energy equals matter, your thoughts would be matter?

[dleviwing]

In this analogy it is just as correct to say M=mc^2 as it is to say E=mc^2. These only define the state of the substance.
Of course this is also assuming that "matter" and "energy" are referring to the fundamental essence of a fundamental physical entity. Thus a rose by any other name.
The current problem is that science today is interpreted as though energy and matter are referring to two autonomous entities just as they view the forces of nature as being individual autonomous forces of nature, each with their own attributes and properties.

[Guille]

Originally Posted by harmonygirl so if energy equals matter, your thoughts would be matter?

Yes. photons would be matter (thus light) and so would be any manifestation of energy, even sound! (this one would be strange to think of, it would be the vibrations of particles would be particles itself)

[subversion]

Originally Posted by <<>> But don't be confused, I don't mean mass, I mean matter.

what's the difference (according to gravity)?

[Guille]

Originally Posted by dleviwing In this analogy it is just as correct to say M=mc^2 as it is to say E=mc^2. These only define the state of the substance. Of course this is also assuming that "matter" and "energy" are referring to the fundamental essence of a fundamental physical entity. Thus a rose by any other name. The current problem is that science today is interpreted as though energy and matter are referring to two autonomous entities just as they view the forces of nature as being individual autonomous forces of nature, each with their own attributes and properties.

I agree. There can be no energy without matter, and if there is matter, there is energy.

[Guille]

Originally Posted by subversion what's the difference (according to gravity)?

Gravity bends spacetime due to mass, not due to matter. There is a concept that we call density, maybe you've heard about it. If you ahve, you will know that there can be a lot of matter but little mass, and vice versa. And if they are not equal in quantity they can't be the same thing! (and being equal in quantity is only the start requisite for being the same thing)

[Mr. Nobody]

The fundamental particle is the description of a matter (energy) wave. Particles do not have a reality on their own, they do not have a size nor occupy space. The particle does not represent a thing but the information of location/ momentum/ spin and so on.

[dleviwing]

Gravity as a force must also be of substance. The state of the substance of space is being acted on by the substance that constitutes physical structure and thus producing an interaction collapsing the wave function of space to the wavelengths produced by structured substances. This produces an effect as if space where being absorbed by structured substance (the phenomena of spacetime, the motions of space.)

[Guille]

Originally Posted by Mr. Nobody The fundamental particle is the description of a matter (energy) wave. Particles do not have a reality on their own, they do not have a size nor occupy space. The particle does not represent a thing but the information of location/ momentum/ spin and so on.

This is--I believe--the main error of physicists ever. It is the most clear principle, the only unique metaphysical proposition on which philosophers agree, that an Entity has Properties. This means that if there are properties such as momentum, spin, location... There msut be an entity that has them. Particles must exist. If particles are not spatially extended, the don't exist! Don't you se,e existence itself is being on space and time! You do agree that particles are extended in time, they started at some point and will stop existing at another point (by decay). So just like that, they are spatially extended.