what's going on smart people my name's dylan i'm a physicist and today i thought we could react to
rick and morty i was suggested this uh show because apparently it has a lot of complex physics
theories and ideas that are explored in it and i thought that was pretty intriguing so
let's check it out together i'm not sure how many of you guys have seen this show
but it's meant to be pretty popular so let's have a look
i've currently got up episode one of season two a ripple in time so let's have a look
hurry up morty grandpa's about to unfreeze time you really should be cleaning from top to bottom
i know how to vacuum mom and dad summer oh i've been doing it for so off to a bad start because
i see this in a lot of movies and shows that explore time travel and if you were to freeze time
you wouldn't see anything like you do here you see blackness and that's because
what you're seeing is the light and light travels only at the speed of light which is
you know 3 million meters per second 300 000 kilometers per second which is obscene
but it does um and the reason you see things is because the light is hitting your eyeballs and
going to the back of your eyeballs your brain's processing it without this time hitting your eyes
you're not obviously going to see anything so if you freeze time there's no light traveling
at the speed of light and hitting your eyeballs so you'd see nothing you wouldn't see everyone
paused around you but any doing it for six months then you've been doing it wrong for six months oh
my god is that mildew the whole point of freezing time was to stop giving a put a shirt on your dumb
dad and let's get this dumb universe rolling let's do this thing i guess this is the uh mad scientist
all right listen you're not by now it also means don't touch your parents or we could
shatter into countless theoretical shards wait a minute it's the right answer or something it's
the annihilation but too much to hug you though yeah it would literally destroy them now listen
why don't why don't you guys go get a free sunday ice cream get out there and get some ice creams
here's 500 cash and unmarked monies i'm just gonna put it on the floor and uh kick it on over to you
you guys go nuts this better not be a bribe if i find a single thing out of place in this house
exactly my love of ice cream won't save you i'll get my jacket wait a minute sweetie is
your shirt on back man that guy is the red green grumble to pretending he knows what's going on
oh you agree huh breadcrumb grumble reference well guess what i made him
up you really are your father's children think for yourselves don't be sheep
this male [ __ ] don't shove me did it what's
oh man i don't feel good am i talking right now i think so wait who said that all right both of
you just don't move don't speak don't think i have to check something i'm gonna help grandpa
what do you mean you're gonna help him i can help too what's happening grandpa shut up
oh crap are you kidding me two dots this never needs to be more than one dot the two of you made
us uncertain what are you talking about in english our time is fractured you two somehow created
a feedback loop of uncertainty that split our reality into two equally possible impossibilities
what works right so they're implying a lot of things here from physics which is cool
um i heard uncertainty so it implies they're implying heisenberg's uncertainty principle
um i'm not sure how it relates here but what that it doesn't really they've sort of just
chucked it in there there's a buzz term to impress all the geeks i guess but heisenberg's
uncertainty principle is essentially you can't know a particle's momentum exactly at the same
time as its position knowing more of one will actually increase your uncertainty in the other's
measurement so again if you know a particle's position precisely it makes its momentum
more fuzzy more unknowable and this might sound like this this is hard to believe when you first
come across it but it is an inherently true uh fact of nature um and these aren't the only two
uh pairings of this relationship of this sort of relationship there's many pairings in reality of
these jewel relationships where knowing more about one makes the other less certain i think another
one's like energy and time knowing more of about something's energy makes it less certain in time
and they've been proved you can prove this with quantum mechanics um
so yeah it's a very cool heisenberg's uncertainty principle is something that is a fundamental thing
you need to know about when you study quantum mechanics then another thing they're implying here
is the many worlds interpretation of quantum mechanics which i explore in a bit of detail in
my video about tenet so go watch that one i won't rehash everything i've said but quickly every time
there's a quantum measurement the many worlds interpretation suggests it actually the universe
reality branches off into both choices so i think in the other video i said you know if
you're choosing between a decaf or a cappuccino it's not a quantum measurement pretend it is then
in the branch reality there's one where you have a cappuccino and there's one where you have a decaf
so what this also implies is essentially the multiverse where there's infinite number of
realities essentially uh where everything that's allowable by the laws of physics is occurring
which means there's other use out there there's an infinite number of other use out there which is a
scary thought but not many physicists actually believe the many worlds interpretation
um a lot of physicists tend to stick to the copenhagen interpretation of quantum mechanics so
look those up there's a bunch of interpretations so these interpretations come down to
how we perceive these equations in quantum mechanics how they connect to reality um it mostly
stems from the wave function so schrodinger's equation and when you observe a quantum state you
collapse the wave function um so if we go to quantum computing where you have a qubit
cubic can be in this superposition where it's in two states simultaneously observing the qubit
collapses its quantum state into one of those states so it's no longer in a superposition um
and but in the many worlds interpretation you're branching reality so now there's two realities
one reality where the qubits in you know spin up another uh reality where the qubits in spin down
and they both coexist but there were infinite timelines we're not on any timeline dummy look
oh my god are those cats i assume they're schrodinger's cats actually i assume they
both are and aren't just like us is the world gone i'm sure you've all heard of schrodinger's
cat so i don't really need to explain that one but they've just sort of chucked together all these
buzz terms from physics especially quantum mechanics so
schrodinger's cat it's a thought experiment cat's both dead and alive hence why it is and it isn't
so i'm guessing they're going to be suggesting where they are is like some quantum realm where
they are and they aren't or something like that but the cat's cool i like that
mom and dad get your head out of your family's ass the three of us are lost in a timeless oblivion
your parents get to exist they're probably living it up in some pointless grounded story about their
marriage coal stone creamery is them after a party look there's no time to hold the accountable
morning like literally no time look around uncertainty is inherently unsustainable eventually
everything either is or isn't and we've got about four hours to be is or isn't since this time
crystal exists in both possibilities and since it's impossible that i didn't they just mentioned
time crystal so that's another real thing they're very cool things and they aren't real they're not
they may sound like some super villains doomsday device but they're real um so if you know what a
crystal is it has this uh arrangement of atoms that are that are regularly repeating in space
whereas these time crystals have this structure that regularly repeats in time
so what it actually is like this little cloud um inside like a dilution refrigerator you have to
cool things down or near absolute zero um and yeah and then you can mess around
with these time crystals they may have some implications for quantum computing
so that's pretty cool but they're very new and we barely understand them so that's another cool uh
reference to this i'm probably about to press this button in both possibilities at exactly the same
time how do you know whatever you're asking the answer is i'm amazing and the way we go
what do you know it's working
what the hell is wrong with you two i i i i mean you four that hurt it was painful good i'm glad
it was painful you deserve it i saw you you you're both all over the damn place we've been split for
20 minutes and your lives are already scattered to the quantum wind what the hell do you eat all
right cool it i see what's happening here you're both young you're both unsure about your place
in the universe you both want to be grandpa's favorite i can fix this morty sit here summer you
sit here now listen i know the two of you are very different from each other in a lot of ways but
you have to understand that as far as grandpa's concerned you're both pieces of [ __ ] yeah i can
prove it mathematically actually let me grab my whiteboard this has been a long time coming anyway
emergency equally mercurial overly sensitive clingy hysterical bird brain humunculi and i
honestly can't even tell the two of you apart half the time because i don't go
by higher age i go by amount of pain in my ass which makes you both identical all right
everything resolved everybody nice and certain about their position in my world yes all right
perfect this time be like grandpa you mean drunk what's that you got something to say we do we
huh that's weird that's weird
oh my god oh my god the son of a [ __ ] is going to kill me [ __ ] is going to kill
me oh god now there's three of them we're outnumbered get in the cupboards wait don't
don't do that they'll know wait think about getting into coverage but don't really die
you broke your time twice
damn i'm from the fourth dimension i can hear all of y'all now let's just see what we got here for
a second uh if there were such four-dimensional creatures or at least in einstein's view of uh
space and time and gravity you know he bunched up all the spatial dimensions and treated time as the
fourth dimension so in that if that was reality um if that's how the world really worked which i
think spacetime is doomed and there's got to be more to it than einstein's view but say it were
then um you might have these four dimensional creatures running about
these four dimensional beings might really actually be able to just at will move through
time seamlessly backwards and forwards going to wherever they want in space as well as time
who knows i like it i like where they're going well you trying to use this
oh see you broke time and you thought you could just stick it back together with this
how you think you're gonna move time while you're standing in your dumb ass three-dimensional
monkey-ass dummies oh way to go asses could ever have one as if it was stolen you stole
a time-freezing crystal from testicle monsters i would have been happy to pay for it
summer but they don't exactly sell them at costco besides there's a larger lesson to be learned here
you better keep back man this will turn your ass into a third trimester fetus from 30 yards we did
it no mother no earth dude yeah with the dinosaurs you know if you get to the dolphin people you're
going too far all right man i'll talk to you later so this comes back to what i was you know what if
you're a fourth dimensional being you'd be able to move through time at will backwards forwards
there's a town prison same thing they do in every other prison only forever why are you doing this
you think i want to be an omniscient immortal being transcending time in space my whole life
i got ambitions man bringing you guys in is my ticket up what if i told you there's a huge ticket
up right behind you you really think i'm not stupid all right hear me just please let me live
oh my god i got that i gotta fix this thing please god in heaven please god oh lord hear my prayers
yes you god not today [ __ ] please god if there's a help please be merciful to me
yes i did it there is no god in your face