Is the Past Determined?

In a recent paper, I argued against backward in time effects used by several authors to explain delayed choice experiments. gave an explanation showing that there is no physical influence propagating from the present past and modifying state of system at previous measurement. However, though solution straightforward case experiments involving only one particle, it subtler two entangled particles because they give rise EPR-like situations. Considering measurement not actual change relative observer allows understand neither nor instantaneous collapse second when first measured, as often postulated.This also get rid any non-locality. this want go further into consequences way considering measurement, have called Convivial Solipsism, show even if, usual sense, effect or future on past, we must nevertheless consider observer's sometimes entirely determined becomes certain measurements are done latter. This apparent contradiction disappears if each builds, through her own measurements, world (that call phenomenal Solipsism) which different what common shared everybody.