Linked Questions

1
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4answers
418 views

How to convince my parents I am from the future? [duplicate]

Here I am, my today's self transported back to 1981, to the happy and cosy Paris western suburbs of my childhood. I know I will be here for a few hours and the only thing I would like to do is to meet ...
146
votes
40answers
48k views

If time travel is possible in the future, no matter how distant, why haven't they come back to tell us?

In a world where time travel is possible, but has not been invented yet, would travelers from the future come back to prove it exists? Surely, they would bring that technology back in time to let the ...
12
votes
8answers
1k views

How to prove you're a time traveller from the (far) past

(Almost like this post but not quite the same - I've seen multiple how to prove you're from the far future but not one how to prove you're from the far past so figured it could be fun to think of a ...
6
votes
9answers
1k views

Rivers flowing uphill

In this article, scientists are investigating river channels on Earth, Mars, and Titan to see how rivers modify their landscapes. The following quote caught my eye: Rivers are, in a way, topography ...
11
votes
6answers
1k views

How can I convince the Internet public at large that I am from the future?

We all know that modern internet forum users, unlike your average social media frequenter, are skeptical and they often dismiss extraordinary claims as fabrications. We all also know that these ...
8
votes
3answers
1k views

When transported suddenly to ancient Persia - how to quickly show that I am from the future?

(This question is quite similar to How do you prove you're from the future?) I am an average person in the year 2016, living in, say, the USA. However I suddenly get transported back in time to ...
5
votes
6answers
2k views

How would a person with modern knowledge of chemistry and medicine fare in Ancient times?

You were born in Rome, when the Roman Republic was still in power. Your father is an upper middle class merchant and you are (or will be) the sole inheritor of his wealth. One day, a ...
6
votes
7answers
990 views

How do you prove you've been to the future?

This is the extremely similar to How do you prove you're from the future? with the crucial difference that objects cannot travel with you and you are not actually from the future - you've just ...
1
vote
9answers
943 views

How to convince your past self that you are from the future with limited memories and resources?

Imagine you are a petite, high school girl named Brooklyn. You also happen to be a superhero, and your power is speed. You were on a mission to investigate a suspicious politician with your best ...
6
votes
4answers
599 views

How to prove you're not from the future?

Imagine this situation: One warm night of 1890, you go home from a pub. You pass a creepy house. In the half-open door, you see the outline of a machine. You go in, and open the lights. You see a big ...
4
votes
4answers
830 views

How to know if one-way travel into the past results in a new timeline?

Setting: Modern day Earth, with technology no more advanced that what's foreseeable within the next 30 years. Premise: An impending disaster which will completely obliterate the entire solar system ...