Creating mass from nothing with time travel

[GhostLoveScore]

So I had one idea. Let's say that you have a cube, it's mass is 1kg and you travel forward in time 10 years and bring it back. Now you have two cubes. Then you go forward again, this time 10 years - 1 Planck time into future. Then bring that cube back again. You can repeat this infinite number of times. You just have to go 1 Planck time before last time. You can create infinite mass.

I know this is just stupid because time travel does not exist and discussing this doesn't make sense, but I wanted to share this.
PS - maybe it's not that stupid, people discuss the grandfather's paradox and that is also not at this time possible.

 

[Ryan_m_b]

This is another reason why time travel often makes little sense.

The science fiction forums are for the discussion of fictional works and for members to get help in writing there own fiction. The rules for the subforum are here:
https://www.physicsforums.com/threads/science-fiction-and-fantasy-forum-rules.680313/

This thread doesn't comply I'm afraid. Thread locked.

 

[AlexTheParticle]

Well, it's definitely an interesting thought experiment, but as you said, time travel is not currently possible and there are many theoretical and practical limitations to consider. One issue is that bringing back an object from the future would require some sort of energy or power source, which may not be sustainable over an infinite number of trips. Additionally, the concept of infinite mass is not really feasible in our physical world. But hey, that's the beauty of thought experiments - they allow us to explore ideas and possibilities that may not be possible in reality. So thanks for sharing your idea!