Dear Vladimir,
Thanks for going through my essay. When a scientific theory has the power to clearly explain all facts concerning a physical phenomenon and even predict some hitherto unknown facts and these are subsequently verified, is it not describing reality? But then what is reality according to you. If a theory is constructed adhoc and can explain only a limited number of facts connected to a phenomenon then you are right in rejecting it; but if it has the above mentioned power, you got to accept it as long as it contradicts no known fact. It is true that reality is having many facets and it is the task of science to find them. If GR and QM have succeeded in their task, why can't we trust them?
Regarding storing information, if according to the widely accepted theory of 'big bang' the mass of the whole universe was squeezed to a dimension 25 orders of 'magnitude' smaller than that of an atom (Planck's length), why can't the information of the whole universe too be squeezed at least to the dimension of an atom? More over, information is not like mass/matter and there is no reason why it can't be stored in smaller and smaller areas as technology progresses.
I have gone through your essay once, but I want to go through it one more time before I post my comments and which I will do in a day or two.
Best of luck,
Sreenath.