Most people are interested in who was born on the same date as them but would it not be whom died at conception time?
If the soul, essence or individual summation of space-time has to be shared or transferred back then the death-conception timing would be the relationship. The inter-web can now be used to identify people that died close to the time to one's conception, should you know within seconds, minutes or hours..
Since physics is a fundamental gotcha, place of death and time might be factor in the newborn's acquired character. Light travels at 299792458 metres per second and the earth has its shapely composition so whether it is a direct, circumferential, or via multiple medium changes, the transfer could start at 67 milliseconds after death* for an other-side transfer.
Because of 1.8 deaths per second, 106.6 deaths per minute, luck still wins out.** and it is a bit soon for any family news.
* Because of the gravity of the situation, light might not be the only transfer system **Receptiveness and matching of space-time medias may bend the rules.-- wjt, Mar 25 2020 Baked by the Dalai Lama since 1475?-- Skewed, Mar 25 2020 Is there a contention handling/arbitration system, like in the IEEE802.x protocols ?-- 8th of 7, Mar 25 2020 [Chairbourne Hero]
1) An offsprings' essence is developing in the womb so I would say initial conditions is conception. A fully fledged human entity is an arbitrary point for society to decide.
2) Everything is physics that has to have a physical, real, extrusion into this dimensional world. If there is a magical connection, at some point there must an event horizon through to the physics of the situation.
3) I don't see why not, probability would be very low or a unique case. There would be a lot of human noise to get through. Maybe close to death experiences may also bridge the horizon.
[8th] Possible,only if the protocol is devoid of an arbitruary defined translation and is soley based on the structure of the Information-media relationship and it's movement. God doesn't play dice.
[Skewed] Yes. possibly, but is there a physical tell. Such a reverent and powerful essence would take it's time, isn't that why the Tibetian buddhists have a search?-- wjt, Mar 25 2020 “God does not play dice with the universe; He plays an ineffable game of His own devising, which might be compared, from the perspective of any of the other players [i.e. everybody], to being involved in an obscure and complex variant of poker in a pitch-dark room, with blank cards, for infinite stakes, with a Dealer who won't tell you the rules, and who smiles all the time.”
- Terry Pratchett-- 8th of 7, Mar 25 2020 Why should they ? Just their little joke. Genius like that is allowed to toy with mere mortals.-- 8th of 7, Mar 26 2020 It's quite hard to come clean about collaborations with other passing conversations or spurious sources. Somethings are just magically grey.-- wjt, Mar 26 2020 Like [xenzag]'s "white" underwear ... ?-- 8th of 7, Mar 26 2020 random, halfbakery