"...Unless, of course, by photonic you mean that all sensations are somehow traceable to electromagnetic interactions. I would still disagree with you on this, though, since there certainly are some that are traceable to gravitational interactions..."
That is what I mean. Gravitational effects are included; but, I am not yet explaining gravity. I think I have done the necessary work to explain gravity; but, I would like to concentrate on the idea that particles of matter interact by photonic means. I am saying there is one single fundamental cause for all activity. I am also saying that the evidence for this singular cause is demonstrated in the effects. The effects are always detected as changes of velocity.
I discount theoretical ideas such as the existence of gravitons, or even Higg's particles. That is not necessary to prove at this point since gravitons and Higg's particles are not yet discovered. I am speaking about what is known now at the most fundamental level. I think that it is correct to say that all effects known are the result of the interaction of photons between particles of matter. The idea I put forth as to a possible nature of mass is the main point that I wish to make. I can go further with this idea.
Thank you very much for responding. I will move onto your second point if it is agreed that sound and touch are, strictly speaking, the result of photonic interactions between our particles and those of the instigator particles. I am not yet saying what I think the cause of gravity is. I have only suggested that mass be connected to empirical evidence as we know it.
If mass is introduced as a new undefined theoretical property, then, I think, that is something to be discussed further. Justification must be given. Lack of understanding is not sufficient reason for introducing a 'given'. That is what I think. Everything introduced should be securely anchored in empirically observed properties. I think those properties consist only of changes of distance with respect to time.
Please continue to respond with your critiscisms. I appreciate it. I am truly interested in uncovering truth even if it is not mine.
James