i dont understand my tensors anymore

forcing me to introduce even a single nonpshysical tensor inbetween
other tensors which are physical, spoils tha entire series of tensors
i intend to input, in ordar ta get a physical output

you cant just expect somthen useful when you touch tensors which are
not physical

becus tha very fundamental of a tensor is that he must be physical

what kind of tensor is that if he is not phsyical?