Q) The whole point of Yoon-Ho Kim, R. Yu, S.P. Kulik, and Y.H. Shih's fairly famous paper calledhttp://xxx.lanl.gov/PS_cache/quant-ph/pdf/9903/9903047.pdf"
is that the position of the signal photon impact on detector D0 is belatedly dependent on if the idler photon goes to D3 (which...