Science General Discussion

[BasilZero]

Just saw Interstellar. Time travel shenanigans ho!

I want it to see it *_*

[Legend]

What if going backwards in time was just going forwards in time, but in reverse?

[NeverDies]

What if going backwards in time was just going forwards in time, but in reverse?

That makes the kind of sense that feels like an epiphany, but then you try thinking about it more and end up going "meh".

[Legend]

That makes the kind of sense that feels like an epiphany, but then you try thinking about it more and end up going "meh".

Nah the more you think about it, the cooler it gets.


Imagine a universe that was going backwards in time. Physically, it'd be perfectly fine. It'd just have the complete opposite rules as us.

[BasilZero]

Nah the more you think about it, the cooler it gets.


Imagine a universe that was going backwards in time. Physically, it'd be perfectly fine. It'd just have the complete opposite rules as us.

Wouldnt existence also be affected by this?

Assuming humans exist in this hypothetical world.

[mustacheman]

From a totally mathematical standpoint, no it isn't possible. The energy required to do so is infinite and thus; we can never achieve "time travel" in the conventional sense.

On the flipside; perhaps in a separate universe which didn't have the same dependencies on space-time as our universe it may be possible, however then you would have the same issues but in a different way.

In short, no time travel isn't possible. Next time.

Also I saw something about "speed being relative". That's true, but that doesn't apply to the speed of light. If you were going at half the speed of light, then light would travel at half the speed so that it continues at exactly the same speed regardless of everything around it. It's not a universal constant for nothing!

[darkknightkryta]

Not sure about that although I did read something recently where some scientists believe that parallel universes could affect each other and be the cause of unexplained phenomena.

My astro physics teacher would explain that to us.  She'd say "Where are all these other dimensions?  Right here." *points right in front her her*

[the-pi-guy]

Savants are interesting.

Spoiler for Hidden:

bump

[Legend]

Savants are interesting.

Spoiler for Hidden:

bump

What are savants?

[the-pi-guy]

What are savants?

Generally, they are people who have very poor intelligence, but are exceptional at something. 

Like one guy is unable to multiply 3 x 5, yet he could tell you that February 7, 1900 fell on a Wednesday in a few seconds.  Or that December 8th, 2098 will fall on a Monday. 

Well, not necessarily poor intelligence.  But I think those are the coolest cases.  If you've ever seen Rain Man. 
This is about Kim Peek, who Rain Man was based off. 

Kim was able to memorize things from the age of 16–20 months. He read books, memorized them, and then placed them upside down on the shelf to show that he had finished reading them, a practice he maintained all his life. He could speed through a book in about an hour and remember almost everything he had read, memorizing vast amounts of information in subjects ranging from history and literature, geography and numbers to sports, music and dates. Peek read by scanning the left page with his left eye, then the right page with his right eye. According to an article in The Times newspaper, he could accurately recall the contents of at least 12,000 books.[6] Peek lived in Murray, Utah and spent a considerable amount of his time reading at the Salt Lake City Library and demonstrating his capabilities at schools, with great help from his father.[10]

Peek did not walk until he was four years old, and then in a sidelong manner.[8] He could not button up his shirt and had difficulty with other ordinary motor skills, presumably due to his damaged cerebellum, which normally coordinates motor activities. In psychological testing, Peek scored below average (87) on general IQ tests.[11]

[BananaKing]

Nah the more you think about it, the cooler it gets.


Imagine a universe that was going backwards in time. Physically, it'd be perfectly fine. It'd just have the complete opposite rules as us.

thats if time its self is has a linear model as we perceive it.

[BananaKing]

Just saw Interstellar. Time travel shenanigans ho!

i know this is a month late. but after i saw intersteller i been more interested in well, interstellar and alient planets more than time travel travel or time variation. been watching hours of documentaries about space really.

stuff like planet collision and stuff like that.

[Legend]

thats if time its self is has a linear model as we perceive it.

Well it doesn't matter how time actually works, since it'd just be us percieving it as backwards.

[BananaKing]

Well it doesn't matter how time actually works, since it'd just be us percieving it as backwards.

but can it run "backwords"?  lets say it does, would you see everything in reverse?

[Legend]

but can it run "backwords"?  lets say it does, would you see everything in reverse?

This universe with negative time would function very similar to ours, except all forces would be negative as well. So gravity would push things away, magnets would attract when charge is the same and repel when charge is different, etc. If you somehow placed a human in to this universe they would essentially move in reverse, but that's because they were designed for normal time. Beings born in this reverse time would be pretty normal and think of their time direction as being forward as well. The flow of time isn't affected.