requirementof good unit
Answers
The 7 traditional SI Basic Units can be derived from just these 3.
Time represents the idea of motion, and is defined as the fastest known motion -- according to the Speed of Light Definition of Time.
Electrical field strength would be defined by the electrical charge of a rest mass electron.
The defining physical object for length is still tough. Currently, length is defined using the atomic second, which may seem, to some scientists, a done deal. So why change it? Well, using the atomic second -- a sublight definition of time -- requires retaining Einstein's Relativity. To avoid this, an actual physical object's length is again required as in the good old days of physics. Perhaps the wavelength of a rest mass electron could be used. Whatever choice is used, it will be the weakest link in these units. It will be the toughest of the 3 Basic Units to define and will have the greatest error.
Electric Charge can be used to derive mass -- using the unifying equation in the Ball of Light Particle Model therefore the Basic Unit of mass can be dropped. Mass would become a Derived Unit.
Current can be derived from a moving charge, therefore it would also become a Derived Unit.
Temperature can be derived as a statistical average of moving particles of mass, therefore it would also become a Derived Unit.
The mole is just a number -- it is not a physical property of matter, or energy.
Electric charge, length, and motion can be used to describe the photon. Using the description of the photon and length, luminous intensity can be described, therefore it would also become a Derived Unit.
I hope it will help you ❤❤❤❤