I don't agree that it's the same with qi.. this explains what i see as your scepticism. What i mean by that is your descriptions of energy as vague, undecided, inprecise. The above places the status of qi as intermediate, meaning its status is neither real or unreal. It seems afterall we are not translating the word qi to energy in the same way. It is like if you stepped on a rope in a dark barn thinking you had stepped on a snake. i don't see matter and energy in this way. Why would i consider the status of energy as any different from that of change or matter? I consider 'human qi' to be bio energy and consider it real. like the thermal picture you offered to show jk, in the same way the rope in the example is real.