>>12249162That's a great question, and one that's still kind of up for debate. In fact, one of the fundamental postulates of quantum mechanics, that the quantum state of anything evolves in time according to a reversible process. So, in theory, the past is physically encoded in the present.
The tricky thing is what happens once it's observed. Some say that the state changes instantly and irreversibly, meaning that the past cannot be constructed from the present.
Others point out that there's a very simple workaround to this, but it involves the multiverse: many, many parallel worlds and alternate histories that lie inaccessible to us. The multiverse lets us construct the past from the present, but to do that we would need to see outside of our universe, into the other worlds. This is not something that anyone knows how to do.
So the short answer is no. The real answer is maybe, but probably not.
