I promised
@tbone1004 above so here one more time, I am sorry I could not be clearer before, at my best right now I say:
initial quantity (Q): 100
half-life (t1/2): 10
time (t): 10
quantity remains (Qt): 50
initial quantity (Q): 200
half-life (t1/2): 10
time (t): 10
quantity remains (Qt): 100
initial quantity (Q): 200
half-life (t1/2): 5
time (t): 10
quantity remains (Qt): 50
If you start with a higher quantity and the half-time is the same,
after the same time passes the remaining quantity is greater than if you start with a smaller quantity.
To get to the same quantity, the only way is that the half time is smaller.
This may well be the case of what is happening in the body and in two glasses of water of different sizes.
I don't know, this is my question.
Right now I can't think how to device an experiment to test that and can't find evidence for or against in literature.
Henry's law predicts what will be reached at equilibrium.
The model accounts for the change based the half-time concept, it does not consider the absolute quantities, just concentrations.
On the other hand it may well be that the initial quantities are not different enough for them to be relevant even after repetive dives and that other factors that have been exposed in the different interesting contributions may be more significant.
I may not find one answer but my thoughts are clearer (thanks all for this).