The Randomness Problem: How Lava Lamps Protect the Internet

Рет қаралды 549,808

5 жыл бұрын

Go to Brilliant.org/SciShow to get 20% off of an annual Premium subscription!
Randomness is important for all kinds of things, from science to security, but to generate true randomness, engineers have turned to some pretty odd tricks!
Hosted by: Stefan Chin
Head to scishowfinds.com/ for hand selected artifacts of the universe!
----------
Support SciShow by becoming a patron on Patreon: / scishow
----------
Dooblydoo thanks go to the following Patreon supporters: Lazarus G, Sam Lutfi, D.A. Noe, الخليفي سلطان, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters
----------
Looking for SciShow elsewhere on the internet?
Facebook: / scishow
Twitter: / scishow
Tumblr: / scishow
Instagram: / thescishow
----------
Sources:
www.wired.com/story/cloudflar...
sploid.gizmodo.com/one-of-the...
www.fastcompany.com/90137157/...
www.nytimes.com/2001/06/12/sc...
blog.cloudflare.com/why-rando...
www.design-reuse.com/articles...
www.random.org/randomness/
ocw.mit.edu/courses/electrica...
link.springer.com/chapter/10....
www.maa.org/sites/default/fil...
nvlpubs.nist.gov/nistpubs/Leg...
www.iro.umontreal.ca/~simardr/...
www.rand.org/pubs/monograph_r...
www.rand.org/content/dam/rand...
docs.microsoft.com/en-us/wind...
tools.ietf.org/html/rfc2246#p...
ops.fhwa.dot.gov/trafficanaly...
ocw.mit.edu/courses/aeronauti...
telescoper.wordpress.com/2009...
auto.howstuffworks.com/remote...
web.archive.org/web/200703150...
Images:
commons.wikimedia.org/wiki/Fi...
• High Performance Doubl...
commons.wikimedia.org/wiki/Fi...

Пікірлер: 834

@SciShow 5 жыл бұрын

Note: At 3:55, the comparison between different sets of coin flips was between two specific sequences, like 10 heads and then 10 tails versus alternating heads and tails, not between half heads/half tails and any other mixed-up order. Thanks to those who pointed out the potential for confusion!

@carlosbarreda6912 5 жыл бұрын

Am sorry but still incorrectly written. "the comparison between different sets of coin flips was between two specific sequences, like 10 heads and then 10 tails" What are the sequences? 10 heads and then 10 tails. " versus alternating heads and tails" What are we comparing too? All possible combinations of alternating heads and tails. However you choose to rephrase this you need to ascertain that you are comparing ONE instance of 20 coin flips resulting in 10 heads followed by 10 tails to another SINGLE instance of 20 coin flips resulting in a combination of heads and tails.

@josefkooper8573 5 жыл бұрын

@Carlos "two specific sequences": "10 heads and then 10 tails" = H H H H H H H H H H T T T T T T T T T T "versus alternating heads and tails" = H T H T H T H T H T H T H T H T H T H T SciShow's correction is perfectly understandable.

@carlosbarreda6912 5 жыл бұрын

@Josef Are you aware that the alternating heads and tails sequence shown by SciShow is NOT the one in your post? Freeze the clip at 3:57 to understand the sequence shown by SciShow.

@josefkooper8573 5 жыл бұрын

@Carlos Are you aware that you're replying to SciShow's correction "versus ***alternating heads and tails***" (= H T H T H T H T H T H T H T H T H T H T) Do you know what the word alternating means? What does whatever specific sequence show at whatever time have anything to do with SciShow's post clearing up possible confusion? Are you aware that informal youtube vidyas are NOT mathematical proofs? Do you enjoy tilting at imaginary windmills?

@carlosbarreda6912 5 жыл бұрын

@Josef, If you think that by alternating heads and tails SciShow meant the sequence you posted then you do not understand the original post nor the clarification.

@psow4062 5 жыл бұрын

My masters thesis was about noise and random number generation, so this episode really brings back the memories :) As part of my thesis I designed and built a pseudo noise generator based on filtered output from LFSR (one of the simpler PRNGs).

@Brainstorm69 5 жыл бұрын

Man, I should find my old lava lamp again. For security reasons only, of course.

@_booth7992 5 жыл бұрын

sapiens I don’t get it.. are you gonna stick it up your ass?

@brachmindunsparce6044 5 жыл бұрын

@@_booth7992 no. For security reasons.

@dirteater3169 5 жыл бұрын

It’s lamp time bröthers

@Excedrine 5 жыл бұрын

I love lamp.

@MineNstuff 5 жыл бұрын

oh god

@SytorvianProductions 5 жыл бұрын

Get to the łåmp my brøthērš

@expertoflizardcorrugation3967 5 жыл бұрын

*moths proceed to swarm the clock*

@Nightwalker973 5 жыл бұрын

10/10 best comment. Hail lämp

@codycall6513 5 жыл бұрын

And I actually thought I’d see a video of dozens of lava lamps running in a large gymnasium sized room with servers, switches and hubs. Protecting the internet. Hah!

@PvblivsAelivs 2 жыл бұрын

That video is on Tom Scott's channel.

@coldboltlighting1237 Жыл бұрын

Do the Tom Scott dance

@Aetherpon 5 жыл бұрын

Aha! I already know this one! Thanks, Tom Scott!

@BertGrink 5 жыл бұрын

You, me, and twenty others, in fact! :)

@mrtalos 5 жыл бұрын

Twenty-one!

@alejrandom6592 5 жыл бұрын

S I X T Y N I N E

@aspiringcloudexpert5127 5 жыл бұрын

ME TOO

@elimg.3684 5 жыл бұрын

Same here

@Redchocobo 5 жыл бұрын

WHAT DO YOU MEAN LAVA LAMPS AREN'T THE HEIGHT OF COOL ANYMORE????? THIS IS BLASPHEMY!!!!

@therockinboxer 5 жыл бұрын

Wow, i read this EXACTLY as he said it! Impossible timing! That WAS random!!!!

@scaper8 5 жыл бұрын

I know right!

@goldenwarrior1186 4 жыл бұрын

Redchocobo They’re the height of hot

@caydens.1250 5 жыл бұрын

He protecc He attacc But most importantly of all, *He prevent hacc*

@antonymagnus7718 5 жыл бұрын

Cayden S. What do you mean? Your linguistic malfunction is so severe that you’re not making any sense.

@caydens.1250 5 жыл бұрын

" *Linguistic Malfunction* "

@alexcao01 5 жыл бұрын

Antony Magnus *whoosh

@AllknowingUnknown 5 жыл бұрын

@@alexcao01 Nah he's to fast he would catch it!

@duetopersonalreasonsaaaaaa 5 жыл бұрын

@@antonymagnus7718 r/whoosh

@unleashingpotential-psycho9433 5 жыл бұрын

I never thought Lava Lamps would help protect the internet.

@massimookissed1023 5 жыл бұрын

4 minutes of Tom Scott kzfaq.info/get/bejne/Z8mFiMl-yrXNmps.html

@theviniso 5 жыл бұрын

I did, but I cheated.

@chrisladouceur4093 5 жыл бұрын

I love lamp.

@richardsantanna5398 5 жыл бұрын

@@chrisladouceur4093 I love carpet

@mattiexo 5 жыл бұрын

Chris Ladouceur LAMP.

@thomasr6732 5 жыл бұрын

Did anyone else think the right side was random?

@crayzeape2230 5 жыл бұрын

Yep. They key is to think of randomness as a lack of uniformity. The pattern on the left was more uniform, and thus, less random.

@SanctuaryReintegrate 5 жыл бұрын

I did. But that's because I understood what was being done there.

@anime130 5 жыл бұрын

What does that mean?

@SnowTheBard 5 жыл бұрын

I did but I'm also an IT person who has studied cryptography so I'm supposed to know.

@bruperina 5 жыл бұрын

I know! It’s like I felt that something is like... random isn’t it?

@SciShow 5 жыл бұрын

Go to Brilliant.org/SciShow to get 20% off of an annual Premium subscription!

@HMan2828 5 жыл бұрын

Fun fact I didn't see you mention. Most modern processors have an integrated astable circuit that generates cryptographically secure random numbers from the unpredictable noise on the power supply and other radio interference. This hardware-generated random number is then used as the seed for the operating system's RNG. Adding entropy in the form of lava lamps or mouse movement is a tiny drop in an ocean of entropy. It looks cool but it doesn't really help anyting.

@alejrandom6592 5 жыл бұрын

Please rephrase the coin toss thing

@Master_Therion 5 жыл бұрын

I love every video that SciShow makes, but this one seemed a bit random.

@LulitaInPita 5 жыл бұрын

No it doesn't... That's not how randomness works...

@nocelebrity6042 5 жыл бұрын

Well, the computer crashed during production, when it executed a step in a stupidity simulation program. It sort of *ran dumb.*

@SamuraiJACsr 5 жыл бұрын

HA! Very good sir

@creepstaasucks8648 5 жыл бұрын

@@LulitaInPita r/whoosh

@YosefHaAriaBenIssacharIsrael 5 жыл бұрын

Filthy Thelemite

@PikaPetey 5 жыл бұрын

Moths love the LÄMP

@siyacer 3 жыл бұрын

They did

@Izandaia 5 жыл бұрын

3:50 This could've been phrased better. While any given sequence of 10 heads and 10 tails is equally likely from 20 coin flips, there are many scrambled sequence, while only a few well ordered ones. Thus, one is far more likely to get a scrambled sequence than an ordered one. I got what you were going for (after thinking on it for a moment), but I bet a good number of people didn't and were confused.

@AG-ig8uf 5 жыл бұрын

Just look at the picture illustrating his statement, it is as clear as it gets.

@destonnight5444 5 жыл бұрын

What do you mean lava lamps aren't in season anymore When did they ever fall out of season

@ricelovingasian69 5 жыл бұрын

I’m a simple *moth* i see *lamp* i click

@ksam2000 5 жыл бұрын

Rice loving asian lmao

@KaliTakumi 5 жыл бұрын

Am I the only one who genuinely thought that the dots on the right seemed more random?

@andregroo 5 жыл бұрын

Kali Takumi oh well, tell a human "one follow a pattern" and he will find a pattern in both. That was my reaction "no one is really random"

@darrylhamlin7475 5 жыл бұрын

Nope. I saw that episode of Numbers too.

@altrag 5 жыл бұрын

No, but it likely means you've seen a similar demonstration at some point in your life. Human psychology is strongly geared toward pattern matching and the clumps you see in the right image trigger that pattern matching part of our brain a lot stronger than the left. Basically, humans typically see uniform distributions as more random than actual random distributions. As always with human psychology, there's likely people who don't follow the stereotype but the vast, vast majority would see the left as more random if they hadn't seen that example (or something vaguely similar to it) before.

@KaliTakumi 5 жыл бұрын

@@altrag Well, being that the dots were pretty uniformly distributed, it doesn't make sense to me to call it random at all. Those are obviously consciously spaced out.

@mariannaark5899 5 жыл бұрын

@@KaliTakumi Me too but I think it is because I often draw/doodle and I noticed that when I make dotted areas, they look better the more thought I put into dot placement because this way they don't form messy clusters and leave unevenly covered areas. So I assumed that the images worked the same way. Maybe many people who guessed right have at some point experimented with doodling or pointillism? it'd be interesting!

@Omnifarious0 5 жыл бұрын

Fortuna and Mersenne Twister are very different classes of random number generators that are used for very different purposes. Fortuna is usable for cryptography, and in order to work, it requires a stream of external noise. Mersenne Twister generates a very predictable sequence. If you learn just a few numbers in sequence, you can predict the entire rest of the series. But, the sequence Mersenne Twister generates still passes most statistical tests of randomness, and is great for simulations and other similar things.

@jamesmnguyen 5 жыл бұрын

I like how in-depth the video was, very well put together.

@thirstfast1025 5 жыл бұрын

Lol, I like how "'70's decor' included a flimsy table with more than one large liquor bottle on it.

@valacarno 3 жыл бұрын

And a set of cocaine, of course.

@50PullUps 5 жыл бұрын

These videos on technology, computers, and math are beyond awesome. Keep it up!!

@TaiJendamNation 2 жыл бұрын

I clearly love you guys :) I forced myself to keep watching til the end even though this one was over my head. Excellent delivery and great speaking voice, always a pleasure.

@Yessir113 5 жыл бұрын

This was so comprehensive and interesting! Thanks Stefan

@FilbieTron 5 жыл бұрын

Really great explanation! Thank you!

@justinmiller7398 5 жыл бұрын

This was a great video. Thank you!

@TheaHFrancis 5 жыл бұрын

This episode is awesome, please make more on similar topics.

@xxx-ed3sk 3 жыл бұрын

This is the coolest bit of information ever!!

@veektoryk 5 жыл бұрын

Really fascinating. I've been using DBAN for disk wiping and understand more parts of the program now.

@minimanofiron2501 5 жыл бұрын

this was just... BRILLIANT! ;)

@carlosbarreda6912 5 жыл бұрын

"Tossing a coin 20 times is just as likely to produce 10 heads and then 10 tails as it is to mix them up" this statement is false. The probability of having a 'mixed up' result is much greater than the probability of having 10 heads and then 10 tails. I think what he meant to say is that tossing a coin 20 times is just as likely to produce 10 heads and then 10 tails as any other sequence.

@Cken684 5 жыл бұрын

I thought this too and decided to search the comments for this post haha

@MattJasa 5 жыл бұрын

Haha I thought that sounded weird too but I didn't give it to much thought. Is it 10 heads and 10 tails are the same as getting heads and then tails back to back 10 times?

@chillsahoy2640 5 жыл бұрын

This was my first thought when I heard that sentence. Any given sequence is equally likely, but there are many possible 'mixed up' sequences while there's only one sequence with 10 tails first followed by 10 heads.

@AG-ig8uf 5 жыл бұрын

His wording is confusing, but picture shows what he meant by mixed up - head followed by tail x10 times

@OtakuUnitedStudio 4 жыл бұрын

It is equally likely that you can get 10 heads followed by 10 tails as it is any _specific_ sequence of 20 tosses, which is 1 in 1,048,576. But that isn't what he said. Now, if he said "there are an equal number of series containing 10 heads followed by 10 tails as there are any mixed up series in an infinite sequence of coin flips", that would be true because both are countably infinite. But, again, that isn't what he said.

@jamesmnguyen 5 жыл бұрын

I saw a video about the lava lamps a while back, it was the coolest use for lava lamps I've seen.

@flamencoprof 5 жыл бұрын

If I needed true randomness I would use how often my co-workers follow an agreed procedure.

@ObsceneLobster 5 жыл бұрын

At first I was kinda annoyed that the LavaLamps weren’t brought up early on. But, then I was appeased at the end. Really interesting video!

@aidanwansbrough7495 5 жыл бұрын

Really interesting, thanks!!

@anthonycampbell97 5 жыл бұрын

It's L Ä M P time bröthers

@korihor9161 5 жыл бұрын

“Totally not a moth” approves this message

@michagrill9432 5 жыл бұрын

Büt ïm nøt ä møth!

@johnwilford3020 5 жыл бұрын

It is not equally likely to get a scrambled series of mixed up flips and complete separation between heads and tails in 20 flips. It is equally likely to get any state but there are many more mixed up states than there are completely separated states. That's the basis of entropy.

@TheRABIDdude 5 жыл бұрын

3:14 I was the guy who is wrote that review! I MADE IT ONTO SCISHOW!!! :D

@collin5022 5 жыл бұрын

awesome video!!

@Farreach 5 жыл бұрын

Keep up with the Computer Science videos I absolutely love them ( as a computer science major)

@anonymousbub3410 5 жыл бұрын

So informational!!!

@SuicideBunny6 5 жыл бұрын

Using lava lamps to protect the internet is probably the most random thing I've heard today

@landonferguson7282 5 жыл бұрын

Wondered on this topic for years

@Xapheus 5 жыл бұрын

As somebody with background in this area, I must say that this was an excellent overview.

@Brindlebrother 4 жыл бұрын

8:54, the cat trying to get bubble gum off its paw

@agioiutdrdgfyfyfhgky 5 жыл бұрын

What're you talking about Stefan?! lava lamps ARE the coolest of the cool! How dare you!

@exudeku 5 жыл бұрын

Look brother, its a lava *lamp*

@agustinamagpie 5 жыл бұрын

My mind wanders off sometimes. This is something I was thinking about in my car the other day. Glad I finally got an answer

@thelastcube. 5 жыл бұрын

Huh now that you mention it a lot of things in the world is random but not to purely unpredictable (after a huge data set) or were randomly generated but now are known to us (say the CMB for example) Right off the bat, when I thought of random I thought of the sun's fluctuations in it's mag field or the direction of Qbits You've made me consciouslly aware of randomness now and now I truly appreciates the randomness

@Kualinar 5 жыл бұрын

Some sources of random : Any radio set between two stations, an analog TV set on any station (bonus point if the station is unused), a mike on a busy street, a feed from some radio telescope, ...

@broskydoodle6697 5 жыл бұрын

The hero we need

@SgtSupaman 5 жыл бұрын

Ok, I'm not through the video yet, but I have to say something about this. Getting 10 heads and then 10 tails is absolutely not just as likely as getting them mixed up. It is just as likely as getting them in a SPECIFIC mix, like the one you showed on the screen, or like getting them in some other specific pattern, but, because there are so many different possibilities that are considered "mixed up" and only one possibility of 10 heads then 10 tails, the two events are nowhere near equally likely.

@therockinboxer 5 жыл бұрын

On an infinite timeline all combinations are equally possible

@SgtSupaman 5 жыл бұрын

@@therockinboxer, yes, all combinations are equally possible, but the video said that a single ordered combination is as likely as all unordered combinations. That statement is ridiculous. My comment was worded somewhat confusingly, but what I meant was that the single ordered combination is as a likely as a single unordered combination.

@mach7archangel 5 жыл бұрын

This is a great video. Good job! You should do one about the mathematical limitations of computers beyond just RNG. i.e. how a computer "cheats" to do anything but addition :D

@Lambda_Ovine 4 жыл бұрын

Fun fact, to be able to tell the time and date, every computer holds a count of the milliseconds that have passed since whatever arbitrary past date the computer starts counting from (called the epoch). Because that count is different every millisecond and never repeats, it's used as the seed for many pseudo random generators.

@JonPITBZN 4 жыл бұрын

"Once again, you're stuck letting the computer receive first." Umm...I wanted that.

@just-a-silly-goofy-guy 5 жыл бұрын

*insert moth comment here*

@dontknowdontcare1934 5 жыл бұрын

No u

@lilysthapit2222 5 жыл бұрын

This video was a large behe-MOTH to understand.

@michagrill9432 5 жыл бұрын

*LÄMP BRØTHER*

@JuliaC-sp5qk 5 жыл бұрын

Lämp brôther

@-tera-3345 5 жыл бұрын

I've always wanted a SciShow and Georg Rockall-Schmidt crossover video.

@Blue_LavaLamp 5 жыл бұрын

Yeah, I'd say I'm pretty random.

@thehumanistisin9924 5 жыл бұрын

I love you - Moth

@PinkChucky15 5 жыл бұрын

Pretty interesting!

@RLomoterenge 5 жыл бұрын

Look at that crazy pendulum go!!!

@jayh0086 5 жыл бұрын

You are incorrect. You just described CSMA/CD or Carrier sense multiple access collision detection, which is NOT used in WIFI networks but rather its used in older half duplex ethernet bus networks. WIFI networks use CSMA/CA or collision avoidance and by design do not suffer collisions.

@kadblue2000 5 жыл бұрын

I thought about this a lot when I was younger and couldn't wrap my head around computers producing random numbers

@mlroeder 2 жыл бұрын

My husband works in computer security, and one of his favorite sayings is, "Randomness is clumpy." ❤

@JonathanMandrake 3 жыл бұрын

I have the perfect RNG: Using quantum effects, there are many ways to generate a certain distribution of random numbers. There is no problem in changing that distribution and making an unbreakable encryption.

@sarahskileth6925 2 жыл бұрын

Okay! That is cool!! I'm going to employ that or maybe a Geiger counter or something like that

@noodletribunal9793 5 жыл бұрын

in older pokemon games, if you use a savestate before a battle or wild pokemon encounter, and reload that savestate, the wild pokemon will often be the same and the trainer will use the same moves given you use the same moves as well. you can change it by starting the battle at a different time or going into menus and whatnot(i think). there are certain glitches in games that let you manipulate the rng or be able to time your movements so the rng is where it needs to be. if im not mistaken, the glitch that gets you straight from the deku tree to the final boss fight in loz oot works like this.

@VaradMahashabde 5 жыл бұрын

Well one might say that what we _think_ is random, is actually just *higher entropy* . Taking your examples, the sequence of 10 heads and then 10 tails is just as random as any other, but it takes the least possible information to describe it, hence it is low entropy. Again, with the polka dots, the evenly spaced one is high entropy as you need to say, "one here, one there, one in that corner....", while in the one with the clumped dots, you can just also _clump_ together the entries for it, saying "five in this spot, 3 there...."

@360.Tapestry 5 жыл бұрын

despite what computer scientists insist, all my media players tend to repeat the same 40 songs out of 200 on "random," while i never hear the other 160 without going to them manually

@lasphynge8001 5 жыл бұрын

I've always loved lava lamps, and now I have one more reason for that!

@all3ykat79 3 жыл бұрын

This totally explains slot gaming machines... when I know they're going to be good, but how I also know they're never going to give me the jackpot.

@zeromailss 5 жыл бұрын

And there's also RNGod that decided my fate in a video game drop rate

@buelph5742 5 жыл бұрын

Speedrunners call him rngesus (r n jesus)

@michaew9093 3 жыл бұрын

I’m not gonna lie as soon as hear encryption i automatically assumed this was gonna be a dashlane advertisement

@primoroy 5 жыл бұрын

If I remember correctly the TI Home Computer used the video clock chip as a starting point to Randomize a random number (a Basic command).

@colorbugoriginals4457 5 жыл бұрын

dang, that was a smooth ad transition at the end there lol

@simonpeter5032 5 жыл бұрын

The only truly random thing in the world is getting hiccups.

@rkpetry 5 жыл бұрын

*_[_**_06:03_**_] theoretically you don't even want 'random' but guaranteed short-term 'noise' with all correlations removed..._* *_[_**_08:53_**_] but a triplet of pendula can be simulated digitally, so really its 'randomness' is something else-define, that..._*

@gcolpitts92 5 жыл бұрын

OMG you guys are toooo funny!!

@madscientistshusta 5 жыл бұрын

I would argue that with a sufficient enough data storage and data on the person making a "random decision" would,indeed also be entirely calculatable. Your just a very advanced analogue computer. It just *appears* random,just as a random number generator appears to get random numbers to the ave person using it.

@gravijta936 5 жыл бұрын

I love lamp! ...and chickens! I love chickens too! :D

@xehP 5 жыл бұрын

Gravijta jicken caws

@davidsi5376 5 жыл бұрын

Sure, i would love a sandwich!

@shanelawrence7438 5 жыл бұрын

I hate those dirty mother cluckers.. Death to all those creatures most fowl!

@Jay-qb9gi 5 жыл бұрын

I do love chicken sandwiches

@elessal 5 жыл бұрын

i am very interest in how this works or would work in video game design and mechanics.

@WhiteSpatula 2 жыл бұрын

I once wrote a database for a call center that gave employees random accounts to work on, rather than simply allowing them to choose (or rather, cherry-pick) from a list. And I found that using the system time was adequate (in that particular case), provided I used only the millisecond value of the moment the employee clicked the “Next Account” button. So, for example, if the list (i.e. the hidden recordset) contained 200 accounts, and the employee clicked the button at millisecond number 500, then the 100th account would be chosen, locked, and populated. Needless to say, I also kept a table of “oh-god-no-gimme-another-one-quick” attempts in order to thwart blind cherry-picking. Cheers! -Phill, Las Vegas

@bobjones5166 5 жыл бұрын

Back in yee-oldy-days when I was writing code and we needed a random number, we would just look at the clock. The main frame I worked on, the clock carried seconds out to 8 decimal places. so that last digit was changing so fast you can never guess what it will be at any given time, so we would just read that number and wola a semi-random number. This only worked for a single digit but could be done over and over again for as many as needed.

@mysteryhombre81 3 жыл бұрын

Whether true randomness actaully exists or not is a philsophical question, that can never be answerd.

@kaleb_barbour3 5 жыл бұрын

Wow that's crazy

@JMulvy 5 жыл бұрын

I had to explain how computers "compute" randomness to my boss that asked, "why iTunes seems to play the same songs even while on shuffle". Although a computer can generate a list of your songs in a random order, iTunes gives preference to songs you play the most and have thumbs-upped, then it plays through that sequence in order. So if you want it to refresh the list without bias, you have to reset the play count and remove all 'liked' ratings. Even then it would not be truly random. If it were genuinely random you run into the possibility of it playing the same song twice in a row. It was kind of funny because I was an intern web developer and he was the head of our web department... 🤔

@deSloleye 5 жыл бұрын

Ok now this was a good video. Smashes the bird one.

@vantablack6288 5 жыл бұрын

georg rockall-schmidt, you beautiful bastard. i knew you were onto something

@julius2538 2 жыл бұрын

9:49 what lava lamps ARE still the height of cool they always were

@radoslawmazurekwaw 5 жыл бұрын

Yep, I noticed that. For example in X Com. 50 percent chance means usually miss.

@donluchitti 5 жыл бұрын

Heard something to flip our concept of randomness on its head: randomness is merely that which we cannot predict its causation. In that sense, as our tech increases and we understand more weather systems , more algorgytms to explain the previously unexplainable, all the wat to other vast cosmological processes , we find less and less randomness😮

@Singularity24601 5 жыл бұрын

At 9:30, "bias" and "random" are distinct concepts that must not be conflated. For example, a computer giving a fixed sequence of alternating heads and tails is unbiased but not random. A hardware-based RNG that uses a quantum process such as radioactive decay to unpredictably generate heads and tails, except that heads come up 51% of the time, is biased but otherwise random.

@conlon4332 3 жыл бұрын

3:36 I guessed the right. The left looked _way_ too evenly spaced out. The right looked pretty random to me with all its imperfections.

@BriefNerdOriginal 5 жыл бұрын

Some libraries allows you to use CPU thermal fluctuations to generate quite solid random series.

@ChaoticRaze 5 жыл бұрын

Taking a picture of hundreds of lava lamps every couple of seconds creates actual randomness, fascinating.

@ashberic 4 жыл бұрын

"scoot your mouse around" made me giggle a bit too much.

@AnonymousFreakYT 5 жыл бұрын

"...just as likely to produce 10 heads and then 10 tails as it is to mix them up" is _completely_ wrong. It is just as likely as *any single* pattern of "mixed up." (Such as the one pattern shown.) But 10 heads followed by 10 tails is insanely unlikely - about one in one million set-of-20-tosses. Yes, any individual pattern (such as the one shown - H T H T H T H H H H H T H H T T T T H T ) is also about one in one million chance. But "as it is to mix them up" as phrased is completely wrong. Because if the alternatives are "10 heads and then 10 tails," "10 tails and then 10 heads," or "any other pattern" - then the odds are 1:1,048,576 of 10H-10T, 1:1,048,576 10T-10H, and 1,048,574:1,048,576 "mixed up". Or "mixed up" 99.99981% of the time.

@CaitlynGieler 5 жыл бұрын

I think maybe he's suggesting that if the sequence were to loop infinitely, then an infinite number of 10 heads + 10 tails sequences is the same as an infinite number of other sequences because both are infinite.

@kyrlics6515 5 жыл бұрын

@@CaitlynGieler lol

@christophelesmacgillicutty9677 5 жыл бұрын

Another seamless segue into your outtro plug

@BrokebackBob 5 жыл бұрын

if a classic lava lamp is left on indefinitely the lava action of the contents will stop and half the contents will settle to the bottom and half will settle to the top you must turn off the lava lamp for a certain number of hours for it to cool and then turn it back on again I don't know how cloudflare handles this but they better take it into consideration.

@SynchronizorVideos 2 жыл бұрын

A properly-operating lava lamp will continue flowing up and down indefinitely without the lava ever settling in a quasi-stable position. Even if a couple of CloudFlare's lava lamps do settle though, the lava still doesn't stay perfectly stationary. Plus, varying sunlight, people walking around, and of course all the other lamps also contribute to the random noise in the camera view that is used to generate keys.

@Wltrwllyngaeiou 5 жыл бұрын

I have a bit of a problem with what was said at 3:58. It is much less likely to see 10 heads/10 tails than it is to see a pattern that has more changes. Of course, to see a SPECIFIC set of switching heads/tails, the probability is equal, but I dont think that's what you said.