Really not interested in getting into a philosophical debate on a silly comment by both sides, but your argument about birthdays disregards the idea of continuity in the world. The accepted idea of birth is when you come out of your mothers whom. For your argument to make sense you'd have to assume that this aspect is disregarded because you are a new person every moment hence a new birth, which disregards the fact that if you are the same person who was born say 10 years ago then you only have one time of birth, in essence it seems your argument says you are a completely new person.
Now keeping that argument in mind. Every moment an object is created a new and there is no real way to retain ownership over anything being that you'd have to make an active kinyan every moment for it to be yours, 1. Mitzad you not being the same person and 2. mitzad the object not being the same thing it was when you acquired it.
So for obvious reasons this argument doesn't coincide well with halacha and true everything is being created every moment, yet there is a continuity throughout. Which means you only have one real birthday and if you say otherwise it is a lie, and an object is owned by the same person even if it isn't the same thing as when he acquired it.
(Hope this made some sense, and I'd like to know if this is what Menucha was thinking)
I really do not want to continue debating this since it is taking away from my Torah learning
.. but one last time:
Object: it is being recreated, rebought, reused, restolen at every momment.
Birthday: you are being reborn and going thru each second of your life at each moment
If JJ goes to a restaurant and say "it is my birthday today", that is true, but it you said today was my "only" birthday then that is a lie.
If JJ goes into an apple store and take an Ipad off the shelf and say it is "mine" that would be a lie because the whole world is being recreated every second - the whole process keeps repeating itself, it is not an alternate world it is the same that has transpired until now it just happens over and over. so it keeps going like this: World created.. torah given.. JJ was just born! Mazal Tov!, bris, school, life.. and then walked into apple store and stole item, this is all happening at the same time at every moment.
The same goes for the object: World created.. torah give.. jj born.. jj stole ipad...
You never had access to this ipad in a state when it was not apple's, it keeps on being created and apple's possession at the same time frame that you stole it, your world and the objects world are the same world that keeps repeating itself. Apple keeps making a kniyan on it every second.
So in summery: Today
is your birthday , and if you steal the object you continue to steal it over and over again.