Quintus: Quantum Teleportation has been established already. The goal is to now do it for macroscopic objects, which is a lot harder but certainly possible using entanglement principles. They have certainly observed multiple quantum states in a macroscopic object already, so that's encouraging.
In terms of does the past and present exist somewhere in the universe:
Not the way you said it Rex. Imagine it this way. if you imagine a 2d paper , or say a 3d box. No matter how far you go along one vector you do not get into another dimension. If you go up the height only, you will never go across the width. It is impossible. Space-Time is similar. It is represented in GR using "Four Vectors", using the 4 dimensions of space-time. The fact that people moving along different speeds can have different "slices" of ST does not mean that for each person different times exist along the same space. It just means that the space and time that exists for a person does not have to be what you would conventionally think of as your space and time. WW2, and 2014 could technically exist in one person's space-time but it would be a far away event that occurred during 1939, not the WW2 events on earth.
A practical example of this is the Stars you see in the sky. For the light travelling from those stars, what we think of as "millions of years ago" and today exist in the same space-time present reality. For that photon it is all happening pretty fast.
Photons are an interesting example though because funny things happen around light speed. Pretty much you have to start thinking in terms of "Light cones". We all have a "past cone" and a "future cone" with the present existing as a single dot with specific coordinates (t,x,y,z) in ST. The light cones represent spaces you technically could experience and thus interact with. Essentially it is any event from where light could potentially reach you. Any place that is c[speed of light]/ t away from you in any direction from the big bang to the end of time is fair game.
Now, would you actually interact with or experience most of these events? No. For starters, you are not capable of going anywhere near light speed, and most of the light from places you could have got might have been blocked off or diverted somewhere.
These guys are misguiding you if you think of these things as cool ways to exist in multiple human historical times. This stuff is more relevant in large scale cosmic matters where human history is nothing more than a speck.
In terms of does the past and present exist somewhere in the universe:
Not the way you said it Rex. Imagine it this way. if you imagine a 2d paper , or say a 3d box. No matter how far you go along one vector you do not get into another dimension. If you go up the height only, you will never go across the width. It is impossible. Space-Time is similar. It is represented in GR using "Four Vectors", using the 4 dimensions of space-time. The fact that people moving along different speeds can have different "slices" of ST does not mean that for each person different times exist along the same space. It just means that the space and time that exists for a person does not have to be what you would conventionally think of as your space and time. WW2, and 2014 could technically exist in one person's space-time but it would be a far away event that occurred during 1939, not the WW2 events on earth.
A practical example of this is the Stars you see in the sky. For the light travelling from those stars, what we think of as "millions of years ago" and today exist in the same space-time present reality. For that photon it is all happening pretty fast.
Photons are an interesting example though because funny things happen around light speed. Pretty much you have to start thinking in terms of "Light cones". We all have a "past cone" and a "future cone" with the present existing as a single dot with specific coordinates (t,x,y,z) in ST. The light cones represent spaces you technically could experience and thus interact with. Essentially it is any event from where light could potentially reach you. Any place that is c[speed of light]/ t away from you in any direction from the big bang to the end of time is fair game.
Now, would you actually interact with or experience most of these events? No. For starters, you are not capable of going anywhere near light speed, and most of the light from places you could have got might have been blocked off or diverted somewhere.
These guys are misguiding you if you think of these things as cool ways to exist in multiple human historical times. This stuff is more relevant in large scale cosmic matters where human history is nothing more than a speck.
You don't get there till you get there