- #1
wmikewells
- 91
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After reading Lee Smolin's Time Reborn and Rodney Brook's Fields of Color, a question occurred to me. Has anyone compiled a "reality" scorecard for the differing theories out there, both current and historical? For example, QFT proponents would consider the following things as real:
And, Lee Smolin and like minded people would consider time, causality, events, etc. as real in contrast to most physicists.
It is not my desire or intent to start a discussion about what "reality" is or to argue whether a particular theory is correct in what it posits as real. Rather, I was wondering if there was a summary some place taking each physicist or school at his/their word about what is real or unreal. It just seems like an interesting perspective even for those physicists who think such questions are outside physics or who may think that we don't have access to reality. For those physicist, laws and mathematics seem to take on the role of "reality". So, a little bit of detective work would be needed in those cases.
So far, I have compiled the following list of historical and current "things" that physicist have considered real. If anyone wants to make additional suggestions, that would also be appreciated.
Ether, particle, wave, particle-wave, string, force, field, field quantum, quantum, 1D time, 3D space, spacetime, >3D space, >1D time, event, causality, law, probability, mathematics, energy, universe, and multiverse
- fields
- field quanta
- causality
- 3D universe
And, Lee Smolin and like minded people would consider time, causality, events, etc. as real in contrast to most physicists.
It is not my desire or intent to start a discussion about what "reality" is or to argue whether a particular theory is correct in what it posits as real. Rather, I was wondering if there was a summary some place taking each physicist or school at his/their word about what is real or unreal. It just seems like an interesting perspective even for those physicists who think such questions are outside physics or who may think that we don't have access to reality. For those physicist, laws and mathematics seem to take on the role of "reality". So, a little bit of detective work would be needed in those cases.
So far, I have compiled the following list of historical and current "things" that physicist have considered real. If anyone wants to make additional suggestions, that would also be appreciated.
Ether, particle, wave, particle-wave, string, force, field, field quantum, quantum, 1D time, 3D space, spacetime, >3D space, >1D time, event, causality, law, probability, mathematics, energy, universe, and multiverse