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KleinMoretti

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**TL;DR Summary:**does the quantity we refer to as energy actually exist

energy is a property of a physical system but does it actually exist, like does an object actually lose or gain a quantity that we refer to as energy after an interaction, or is it just a mathematical concept, are those mutually exclusive? From Feynman lectures (which is the source I have seen recommended the most to understand energy) "It is important to realize that in physics today, we have no knowledge of what energy

*is*. We do not have a picture that energy comes in little blobs of a definite amount." This makes it seem like energy does represent something beyond a mathematical took but idk I maybe misinterpreting it.