Is Time Travel Possible When Objects Cannot Coexist in Different Time Periods?

[Themuffinman]

Ok hear is a senario. Let's say time travel is possible. Jack and Jill discovered a way to travel to the future. Jack and jill are both In the same room. jack travels 1 year into the future. Jack would see his basement one year older still made up from the same matter it was made up from a year earlier. Meanwhile Jill is looking at the same basement. Two identical objects can not co exist if they did, they would not be the same.

 

[HallsofIvy]

What is your point? If Jack is now in the future how are the two basements "co-existing"? Suppose Jack's time machine took a year to get him one year in the future. Would your objection still hold?

 

[lvlastermind]

Two identical objects can not co exist if they did, they would not be the same.

The quantum world would disagree...

 

[omin]

Themuffinman,

Does the room 'travel' with Jack or does the room not travel with Jack and stay with Jill?

 

[Themuffinman]

Only jack travels through time The basement stays were it is

 

[turin]

The basement (and observer Jill) only exists for one moment in time?

 

[omin]

There can only be one Basement

Only jack travels through time The basement stays were it is

There is only one basement. Matter is neither created nor destroyed.