1984 ending

How is the ending of 1984 significant? Is the bullet representing an actual bullet? Or is it representing that the old Winston is dead and the new brainwashed Winston is born and taking over after what happened with O'Brien? Does "Slavery is Freedom" make more sense because he no longer possesses any awareness of the discrepancy between truth and fiction? Also, when Winston and Julia meet in the park, they seem to be almost dehumanized, much different from before. "here did not seem to be anything more to say", after they talked about betraying each other, they just walked away. There was no physical contact for the most part, or any desire to, which was much different than how they had been before getting taken away and changed.

I believe it's increasingly about safeguarding things and keeping things in memory. To do my homework for me is an image of solidness of recollections for him. It's delicate, and yet, it has an ideal shape and can incorporate a few items in itself. It is somewhat a device that has some setting issue. In this way, from the otherworldly viewpoint, it speaks to the shape and the significance in it.