mkbh_10 said:Suppose i build a time machine , then go back in the past & kill myself . I die the instant i kill my past , but how in the first place i built the time machine ?
The paradox of self-built time machines refers to the idea that if someone were to travel back in time and give their past self the necessary information or tools to build a time machine, then where did the original information or tools come from? This creates a loop or contradiction in the timeline, as the time machine would not have been originally created without the future self's intervention.
While there is no definitive answer, some theories suggest that time travel may be possible through the use of parallel universes or alternate timelines. In this scenario, the future self would be giving the information or tools to a different version of their past self in a different universe, avoiding the paradox. However, this is still a highly debated and unproven theory.
There are many theories in physics that attempt to explain the concept of time travel and its implications on causality. Some suggest that the laws of physics would not allow for time travel to occur in the first place, while others propose alternate models of time that could potentially resolve the paradox. However, there is still much debate and research needed in this area.
If a solution to the paradox were to be discovered, it would have significant implications on our understanding of time and the universe. It could potentially open the doors to actual time travel and raise ethical questions about altering the past or future. It could also challenge our current understanding of causality and the concept of free will.
Self-consistency refers to the idea that events in a timeline must remain consistent and logical. In the case of the paradox of self-built time machines, if a future self were to intervene in the past to create a time machine, it would create a contradiction in the timeline. This challenges the principle of self-consistency and adds to the complexity of solving the paradox.