Yeah, that doesn't sound like weed. No doubt, edibles can be powerful and I've definitely eaten some high doses that resulted in near inability to move & audio hallucinations/distortions. But, this sounds like he went through what they call ego-death, which is reliably found in moderate to high doses of psychedelics - "geometries from other Universes", in the void remembering that you had only dreamed that you were a human alongside extreme time dilation that feel infinite or like an eternity - are dead giveaways (pardon the pun). DMT is the best, of course. Get's one there in seconds and back in 10 minutes... instead of hours and hours....

This is an excellent explanation for someone of his age and his skill with video editing obviously helps a lot. It held my interest, the world needs more entertaining and educating videos like these.

My only criticism - and some youtubers have already pointed this out - is that the explanation of time dilation "..the same bodily change that happens on earth takes much longer to occur when you are moving so fast.." is wrong.

Signals sent within the body can be analogous to a clock - any fixed duration measured between two ~lightspeed reference frames will be different, including seconds measured by an atomic clock - but time dilation specifically has nothing to do with the mechanics behind how you measure the time or the time it takes a signal to travel. It's a property of the nature of spacetime. Time itself actually slows down. There's no 'trick' to understanding how or why, it's just a property that it has. We can forgive him because he'd already demonstrated that physics is the same in any inertial reference frame and there is no "preferential" reference frame; therefore the motion of the reference frame can't be responsible for the observed difference, so he obviously already really knew all this.

There's no shame in getting that wrong, because he'll be taught more and better about it as he progresses through school. Generally the arbitrary subjects are the hardest to live with because you just have to accept them as they are rather than 'understand'. Quantum mechanics is the same - you just have to accept the rules and apply the maths. Everyone struggles with it, even Feynman said "If you think you understand quantum mechanics, you don't understand quantum mechanics."

@dannym3141

It just felt like a bait and switch. They feed you in with in fact very plausible concepts of time dilation and black holes as we best know it, then hit you with a deux ex machinima so implausible that it makes my brain hurt.

I mean, we're meant to believe that future humans, in order to effect their continued existence create an eloborate, highly risky and convoluted system like this 'tesseract library' thing, with the completely unfounded apparent knowledge that Mcconaughey's character will both willingly jump into it and somehow know how to use it to communicate with his daughter, who will pick up on highly cryptic and unlikely signals, and know how to interpret them?

And then Mcconaughey's character also gets saved. Obviously. Why not just convey the information in a far more direct way? And by the way, I will say that the argument that there is a paradox (future humans save themselves in the past) that the video makes is not strictly true given Hathaway's team survives and it's plausible that while Earth perishes, their team eventually redevelops human society.

To me the way that the story suddenly becomes ridiculous at the end when the first half is so rooted in real actual science makes it pretty clear what happened. Some producer decided to overule the script writers and insert in an ending that is happy, sees the characters reunited lest they offend the crucial female demographic.

I enjoyed it. I don't understand many of the criticisms - it's a film, were we somehow expecting to have our humanity validated by it? A scientifically accurate description of a mission would be boring - they'd almost certainly die in the wormhole.

The science wasn't unreasonable. It was a lot closer to reality than anything in star trek or star wars. Anne Hathaway's character muses on the power of love and suddenly it's a force of the universe? My memory might be flawed, but i don't remember hearing anyone confirm that or discuss it - in fact, the state her "lover" was in was kind of contrary to the opinion she gave and certainty to how she felt. We really do have no idea about black holes, either, so for all we know it could be manipulated by some future technology. The tesseract "library" was an interesting take on time travel/time manipulation.

The only thing that broke my suspension of disbelief was the bit when they said they thought they had years of good readings from the water planet due to time dilation. But that doesn't make any sense, because the number of signal pulses sent from the surface must equal the number of signal pulses received in orbit. My best guess is that the pulses would be elongated and have their wavelength shifted, possibly, but one thing i am certain of is that the total number can't be different.

The problem is, the older you get, the more you know about science, the less faith you have to put in films to give you a mind-bending experience that works on so many levels. None of it is plausible, so why rule it out based on what Hathaway thinks about the nature of love, or anything else?

Good film! And funny video. Someone's got to defend it though!

To be fair, there are a few good reasons as to why you can make a good case for it being a universal speed limit - time dilation from light's perspective effectively makes travel time over any distance instantaneous so at the speed of light you can travel any distance instantly, making it effectively infinitely fast. Any faster and you could "arrive before you got there." Mass energy relation indicates you'd need an infinite amount of energy to reach light speed. Loads more.

I'd love it all to be wrong though.

>> ^moodonia:

I bought a SATA3 SSD recently for my OS/programs/couple of games and its well worth it. Power on to usable desktop in Windows 7 in less than 10 seconds. Still keep a RAID array of conventional disks for mass storage.
It really is a good upgrade for old computers, anything with a SATA port should show a big improvement over a HDD even if the SATA controller is only SATA1. In my experience they are backward compatible, they should just run at the lower speed of the controller .
Nice to see OAG making some squids out of her internet fame, she seems to be making the most of it, good for her.
Youre experience may vary, check with your PC manufacturer


Try RAIDing a bunch of SSDs. The time dilation effects are a bit nauseating though.

>> ^rottenseed:

From my understanding of relativity and space-time continuum, 587 light years at close the speed of light wouldn't take very long to those on the space-craft because of "time-dilation". However, to those not on the spaceship...well, they'd be LONG gone. Somebody want to back me up on that? Maybe somebody smart?

That's true, but the problem is getting close enough to the speed of light to make an appreciable difference. I read in one of the science mags recently (SciAm or Science, I think) that traveling at 99.9% the speed of light would allow a crew to travel to the edge of the known universe and back in about 57 years, ship time. Not an exact quote, but it was something pretty insane like that. Unfortunately, we haven't even begun to dream of a propulsion system/energy source that would allow us to reach anywhere near that kind of speed.


Small moves. Let's get to Mars first.

From my understanding of relativity and space-time continuum, 587 light years at close the speed of light wouldn't take very long to those on the space-craft because of "time-dilation". However, to those not on the spaceship...well, they'd be LONG gone. Somebody want to back me up on that? Maybe somebody smart? >> ^zor:

OK now all you have to do is build a space ship that can go the speed of light, get on it, and ride for 587 years. sheesh!

The last bit about our mind expanding when we're in a new environment is the reason I'm addicted to living in other countries: time dilates, and I get more mental stimulation from every direction, and when I go home, my mind just isn't as stimulated, time flies by, and pretty soon I feel like I'm wasting my life. And it really is the same feeling as being in a relationship or not.

Can't agree with the coffee analogy though because all that does it make me paranoid and give me the shits.

Einsteinian Time Dilation is not the basis of GPS.

Time dilation had to be taken into account by GPS--because of how fast the satellites are moving (Einstein's Special Theory of Relativity)--and because the gravitational field of the earth is less at that distance (Einstein's General Theory of Relativity).

GPS & Relitivity

@GeeSussFreeK

Time is interesting, truly one of humanities and other animals, greatest sensory abilities via memory. In fact how our memory is stored depending on what type of creature you are can give you a wide difference in abilities. Like a fly out maneuvering your swat attempts. Truly time seems not to exist at all if there is no memory. You can also tell that our perception of time was never meant to work with time dilation; this showing that time is extremely relative even just by biological standards.

But, you must remember that if we all died tomorrow and on some distant planet a new species started to learn as we have. They will still have access to the greatest library ever known: The Universe. Does that make time exist? Is it merely just an artifact? Time seems to have an "artificial" standing, as this new species will not see it at "one second" nor will they perceive "one second" the same as us. Time exists, but what is your duration, one tic = the time it takes for the Universe to go from 3k Kelvin to 0 Kelvin, or a few seconds = as we see it?

Much like temperature and other sensory based interpretations of reality. I think it does exist outside our perception, but it could be better stated than is. Perhaps using discreet energy packets in relation to the speed of light interpreted by general relativity for the system, etc... (a much more precise definition of time is using the mechanical nature of particle physics and sharing it with another system, much like nuclear clocks).

I think every one in here should take a moment to understand how things die. It is highly debated, but is that fish dead? Maybe, maybe not. What is dead? Dead when the person observing the former cannot sense signs of life (pulse, eye dilation)? Or is death when a brain no longer carries electrical signals; moreover is death when the cerebral cortex no longer functions.

How long is a severed head still alive?

Below is some debate about the severed head issue. While I found the first link interesting, I was not satisfied. The Wiki Answers link seems to be more to the point. How long does a severed head retain life, perhaps a few fleeting moments. To an observer maybe seconds, or minutes. To the victim, no one can know; given the effects of time dilation.

http://www.straightdope.com/columns/read/1172/does-the-head-remain-briefly-conscious-after-decapitation

http://wiki.answers.com/Q/How_long_does_one%27s_awareness_continue_after_the_human_head_is_severed_from_the_body

In short there is no humane way to die. Death is a dirty business. Some see this video and say it's not humane, some see the video and all but condone it. I see this video as an observation of the interaction between the macabre and desirous. Business as usual.

I've been listening to Wolfson's lectures titled "Modern Physics for Non Scientists" and he explains this well. This is exactly what special relativity explains! I downloaded it from demonoid. I can send you an invite if you want.

It's also part of the failed Michelson-Morley experiment. They knew that light moved at a constant speed. They thought there was a fixed frame of reference that light moved through. They thought that light was a wave moving through the universal aether. They thought that by measuring the speed of light in different directions and at different times of the year, they'd see differences. It failed. They measured the same speed of light in all directions at all times of the year!
http://en.wikipedia.org/wiki/Michelson-Morley_experiment

Special relativity explained the failed experiment. Special relativity says that all physics are the same for bodies moving in uniform motion. As long as you're moving at a constant speed, you'll always measure light as the same speed! There is no fixed universal frame of reference. Nothing can be said to be at rest, or moving. You can only say something is moving "relative" to some other object. This leads to all sorts of weird things like time dilation and length contraction. Read up on it.

In reply to this comment by Drax:
When the Klingon Bird of Prey decloaked I was like, OMG!!!1!

But seriously, this does a great job at explaining the time / space relation. It still doesn't touch on one spot I've been trying to wrap my monkey brain around for some time.

Light travels at a set speed, nothing can travel faster then this speed. It's like a big universal speed limit. That should mean that if I'm traveling on a magical cosmic space train that's traveling in a straight line at.. lets say 500,000 mph, if I where to shine a flash light in the direction I'm traveling then the light emitting from that flashlight should travel (relative to me) at the speed of light minus 500,000 mph. Otherwise the light would be traveling faster then the speed of light to someone not onboard the magical cosmic space train.

This would also imply that there is a universal speed of 0. Which would mean we could measure our planet's speed through the universe to this speed of 0 by shining beams of light in various directions from our planet and measure how long each beam takes to reach certain distances (satellites positioned in front of each beam or something). After all our galaxy is moving through space, we're spinning in the arm of this galaxy, we're orbiting a sun.. all of these -should- factor in to how fast each of one is -actually- moving, right?

This big brainy friend of a friend told me once, no.. that's not how it works. And I suspect as much, unfortunately he wouldn't explain further. So I don't understand the workings of how there can be a set speed at which light travels and nothing can ever exceed this speed, when there's no specific speed of Zero to start accelerating from. Otherwise some things could very well be traveling faster then the speed of light relative to other things.

I never like those 5 videos being my top ones. But anyways, here is a list of top videos from people that are no longer active (or as active as before) and are great videosifters

plastiquemonkey

http://www.videosift.com/video/stephen-colbert-swallows-a-banana-and-totally-loses-it

http://www.videosift.com/video/how-she-gets-to-look-that-beautiful

http://www.videosift.com/video/kevin-spacey-is-really-really-good-at-impressions

http://www.videosift.com/video/The-Monty-Hall-Problem

http://www.videosift.com/video/the-middle-east-its-not-a-crisis-its-an-opportunity

mlx
http://www.videosift.com/video/This-commercial-will-blow-you-away

http://www.videosift.com/video/The-Making-of-the-Shining-pts-1-4-by-Vivian-Kubrick

http://www.videosift.com/video/Johnny-Cash-Hurt-1

http://www.videosift.com/video/The-Pale-Blue-Dot-by-Carl-Sagan-Excerpt-read-by-the-Author

http://www.videosift.com/video/White-Stripes-Icky-Thump

benjee
http://www.videosift.com/video/South-Park-Ms-Garrison-explains-Evolution

http://www.videosift.com/video/IBM-Powers-Of-Ten-amazing-9-minute-science-video

http://www.videosift.com/video/The-Secret-Life-Of-Brian-Monty-Pythonreligion-documentary

http://www.videosift.com/video/Why-We-Fight-BBC-Storyville-US-war-machine-documentary

http://www.videosift.com/video/The-Fog-of-War-11-Lessons-From-The-Life-Of-Robert-McNamara


nickyp
http://www.videosift.com/video/Bill-Hicks-on-dinosaurs

http://www.videosift.com/video/Peter-Bjorn-John-Young-Folks

http://www.videosift.com/video/LCD-Soundsystem-Tribulations

http://www.videosift.com/video/Portishead-All-Mine

http://www.videosift.com/video/Thou-Shalt-always-Kill-dan-le-sac-VS-scroobius-pip

gluonium
http://brain.videosift.com/video/Aluminum-boat-floats-on-nothing

http://brain.videosift.com/video/Quick-Science-Sift-8rapid-vaporization-of-cryogenic-liquid

http://brain.videosift.com/video/Quick-Science-Sift-14-Time-dilation-is-a-real-phenomenon

http://brain.videosift.com/video/What-NOT-to-do-with-metal-objects-and-MRI-machines-10s

http://brain.videosift.com/video/Mmmmmm-64-slices-of-American-cheese