Is spacetime wholly a mathematical construct and not a real thing?












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Speaking of what I understood, spacetime is three dimensions of space and one of time. Now, if we look at general relativity, spacetime is generally reckoned as a 'fabric'. So my question is, whether spacetime is real or is just a mathematical construct to understand various things. In addition to this, if it's a mathematical thing, then what does its distortion/bending mean?










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    1















    Speaking of what I understood, spacetime is three dimensions of space and one of time. Now, if we look at general relativity, spacetime is generally reckoned as a 'fabric'. So my question is, whether spacetime is real or is just a mathematical construct to understand various things. In addition to this, if it's a mathematical thing, then what does its distortion/bending mean?










    share|cite|improve this question

























      1












      1








      1








      Speaking of what I understood, spacetime is three dimensions of space and one of time. Now, if we look at general relativity, spacetime is generally reckoned as a 'fabric'. So my question is, whether spacetime is real or is just a mathematical construct to understand various things. In addition to this, if it's a mathematical thing, then what does its distortion/bending mean?










      share|cite|improve this question














      Speaking of what I understood, spacetime is three dimensions of space and one of time. Now, if we look at general relativity, spacetime is generally reckoned as a 'fabric'. So my question is, whether spacetime is real or is just a mathematical construct to understand various things. In addition to this, if it's a mathematical thing, then what does its distortion/bending mean?







      general-relativity special-relativity spacetime






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      asked 1 hour ago









      TaskMasterTaskMaster

      162




      162






















          3 Answers
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          spacetime is three dimensions of space and one of time. ... my question is, whether spacetime is real or is just a mathematical construct




          Here is different from there and now is different from then whether you do the math or not. A mathematical construct cannot be the difference between a near miss and a catastrophic collision.






          share|cite|improve this answer
























          • So do you mean that spacetime depicts a real thing?

            – TaskMaster
            1 hour ago






          • 1





            I am not a big fan of the word “real”, but it is definitely more than just a mathematical construct

            – Dale
            1 hour ago



















          2














          Gravitational waves carry energy, momentum, and angular momentum from one point to another. In my book, this makes spacetime just as real as an electromagnetic field, which also transports these quantities. You feel electromagnetic energy whenever you walk outside on a sunny day. If gravity weren’t so weak, you would feel the energy in gravitational waves.



          Most physicists consider these fields just as real as matter, which in modern physics is
          explained using yet more fields!






          share|cite|improve this answer

































            0














            Spacetime furnishes the stage upon which all the physics in the universe is acted out, in one way or another. For it to behave in the way we have observed it to, it must have certain properties, and our measurements of those properties are in close correspondence with calculations based on our mathematical models.



            Based on this, spacetime is not just a mathematical construct invented to make calculations easier. The constructs are our mathematical models, which are intended to represent the functioning of the universe as it is.






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              3 Answers
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              3 Answers
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              active

              oldest

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              active

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              2















              spacetime is three dimensions of space and one of time. ... my question is, whether spacetime is real or is just a mathematical construct




              Here is different from there and now is different from then whether you do the math or not. A mathematical construct cannot be the difference between a near miss and a catastrophic collision.






              share|cite|improve this answer
























              • So do you mean that spacetime depicts a real thing?

                – TaskMaster
                1 hour ago






              • 1





                I am not a big fan of the word “real”, but it is definitely more than just a mathematical construct

                – Dale
                1 hour ago
















              2















              spacetime is three dimensions of space and one of time. ... my question is, whether spacetime is real or is just a mathematical construct




              Here is different from there and now is different from then whether you do the math or not. A mathematical construct cannot be the difference between a near miss and a catastrophic collision.






              share|cite|improve this answer
























              • So do you mean that spacetime depicts a real thing?

                – TaskMaster
                1 hour ago






              • 1





                I am not a big fan of the word “real”, but it is definitely more than just a mathematical construct

                – Dale
                1 hour ago














              2












              2








              2








              spacetime is three dimensions of space and one of time. ... my question is, whether spacetime is real or is just a mathematical construct




              Here is different from there and now is different from then whether you do the math or not. A mathematical construct cannot be the difference between a near miss and a catastrophic collision.






              share|cite|improve this answer














              spacetime is three dimensions of space and one of time. ... my question is, whether spacetime is real or is just a mathematical construct




              Here is different from there and now is different from then whether you do the math or not. A mathematical construct cannot be the difference between a near miss and a catastrophic collision.







              share|cite|improve this answer












              share|cite|improve this answer



              share|cite|improve this answer










              answered 1 hour ago









              DaleDale

              5,1841826




              5,1841826













              • So do you mean that spacetime depicts a real thing?

                – TaskMaster
                1 hour ago






              • 1





                I am not a big fan of the word “real”, but it is definitely more than just a mathematical construct

                – Dale
                1 hour ago



















              • So do you mean that spacetime depicts a real thing?

                – TaskMaster
                1 hour ago






              • 1





                I am not a big fan of the word “real”, but it is definitely more than just a mathematical construct

                – Dale
                1 hour ago

















              So do you mean that spacetime depicts a real thing?

              – TaskMaster
              1 hour ago





              So do you mean that spacetime depicts a real thing?

              – TaskMaster
              1 hour ago




              1




              1





              I am not a big fan of the word “real”, but it is definitely more than just a mathematical construct

              – Dale
              1 hour ago





              I am not a big fan of the word “real”, but it is definitely more than just a mathematical construct

              – Dale
              1 hour ago











              2














              Gravitational waves carry energy, momentum, and angular momentum from one point to another. In my book, this makes spacetime just as real as an electromagnetic field, which also transports these quantities. You feel electromagnetic energy whenever you walk outside on a sunny day. If gravity weren’t so weak, you would feel the energy in gravitational waves.



              Most physicists consider these fields just as real as matter, which in modern physics is
              explained using yet more fields!






              share|cite|improve this answer






























                2














                Gravitational waves carry energy, momentum, and angular momentum from one point to another. In my book, this makes spacetime just as real as an electromagnetic field, which also transports these quantities. You feel electromagnetic energy whenever you walk outside on a sunny day. If gravity weren’t so weak, you would feel the energy in gravitational waves.



                Most physicists consider these fields just as real as matter, which in modern physics is
                explained using yet more fields!






                share|cite|improve this answer




























                  2












                  2








                  2







                  Gravitational waves carry energy, momentum, and angular momentum from one point to another. In my book, this makes spacetime just as real as an electromagnetic field, which also transports these quantities. You feel electromagnetic energy whenever you walk outside on a sunny day. If gravity weren’t so weak, you would feel the energy in gravitational waves.



                  Most physicists consider these fields just as real as matter, which in modern physics is
                  explained using yet more fields!






                  share|cite|improve this answer















                  Gravitational waves carry energy, momentum, and angular momentum from one point to another. In my book, this makes spacetime just as real as an electromagnetic field, which also transports these quantities. You feel electromagnetic energy whenever you walk outside on a sunny day. If gravity weren’t so weak, you would feel the energy in gravitational waves.



                  Most physicists consider these fields just as real as matter, which in modern physics is
                  explained using yet more fields!







                  share|cite|improve this answer














                  share|cite|improve this answer



                  share|cite|improve this answer








                  edited 1 hour ago

























                  answered 1 hour ago









                  G. SmithG. Smith

                  5,2691021




                  5,2691021























                      0














                      Spacetime furnishes the stage upon which all the physics in the universe is acted out, in one way or another. For it to behave in the way we have observed it to, it must have certain properties, and our measurements of those properties are in close correspondence with calculations based on our mathematical models.



                      Based on this, spacetime is not just a mathematical construct invented to make calculations easier. The constructs are our mathematical models, which are intended to represent the functioning of the universe as it is.






                      share|cite|improve this answer




























                        0














                        Spacetime furnishes the stage upon which all the physics in the universe is acted out, in one way or another. For it to behave in the way we have observed it to, it must have certain properties, and our measurements of those properties are in close correspondence with calculations based on our mathematical models.



                        Based on this, spacetime is not just a mathematical construct invented to make calculations easier. The constructs are our mathematical models, which are intended to represent the functioning of the universe as it is.






                        share|cite|improve this answer


























                          0












                          0








                          0







                          Spacetime furnishes the stage upon which all the physics in the universe is acted out, in one way or another. For it to behave in the way we have observed it to, it must have certain properties, and our measurements of those properties are in close correspondence with calculations based on our mathematical models.



                          Based on this, spacetime is not just a mathematical construct invented to make calculations easier. The constructs are our mathematical models, which are intended to represent the functioning of the universe as it is.






                          share|cite|improve this answer













                          Spacetime furnishes the stage upon which all the physics in the universe is acted out, in one way or another. For it to behave in the way we have observed it to, it must have certain properties, and our measurements of those properties are in close correspondence with calculations based on our mathematical models.



                          Based on this, spacetime is not just a mathematical construct invented to make calculations easier. The constructs are our mathematical models, which are intended to represent the functioning of the universe as it is.







                          share|cite|improve this answer












                          share|cite|improve this answer



                          share|cite|improve this answer










                          answered 42 mins ago









                          niels nielsenniels nielsen

                          16.9k42755




                          16.9k42755






























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