This week Kirstie asks:
If you travel to your future, and talk to yourself there, do you remember the conversation when you go back, or do you forget it?
Great question! The answer depends on how time travel works in the way you’re imagining, and whether you are talking about your past self or your future self forgetting the conversation. Here are a few simple ways to think about it based on your past self time travelling.
1. Fixed Timeline (Nothing Changes)
- If time is set and nothing can be changed, then when you go to the future, talk to your future self, and come back, you would remember the conversation. It’s like the conversation was always meant to happen, so when you go back to the past, you already have the memory of it.
2. Mutable Timeline (Things Can Change)
- If time is changeable, your conversation with your future self could alter the future. However, since you have had the conversation with future you, this conversation would now be a memory for your past self, even though it happened in the future, it is in your past.
3. Parallel Universes (Different Realities)
- Another idea is that each time you travel into the future, you’re stepping into a new version of the timeline, like opening a new door. So, after you talk to your future self and return to your past, you might not remember the conversation because you’re back in your original reality, where that event never happened.
4. Twice Upon A Timeline (Cloned Time Traveller)
- If Zac Drummond were to clone himself and go to the future, then speak to his future self, his future self would have a past memory, however, if Future Zac hadn’t met younger Zac then gone back to the past, he would have no memory of any conversation.
I hope this helps answer the question is the best way I can. The reason there are so many answers, is because there are so many possibilities, and since I have not personally been to the future, I can only speculate as to possible outcomes based on logic.




