Ever imagined a world,
where devices never run out of battery?
or a world where terrorism, never existed?
a world, where you are what you always dreamt of being?
or a world, where man-kind has achieved immortality?
Call them your fantasy worlds,
but, All of us love imagining such
alternate realities.
so, are there world's like these,
really somewhere out there?
worlds with different versions of you
doing and being everything you have and
haven't yet imagined!
are there universes that are identical to ours,
but with a little variation?
well, lets explore what we know.
whatever we discussed few seconds ago,
is known as the Many worlds interpretation.
The Many-Worlds Interpretation of quantum-mechanics
holds that, there are many worlds which exist
in parallel, at the same space and time as our own.
for understanding this in a better way, lets revisit the double-slit experiment.
we recommend you to watch our episode which is suggested now.
don't worry, its only 5 minutes long.
then come back & watch the remaining part.
so, as we know, when electrons were shot to the screen through a double-slitted strip,
they showed a unique pattern.
it was completely different from a pattern that was formed
when some balls are shot
in the same-way.
this experiment proved that electrons could
behave as both, particles as well as wave.
this pattern could be formed only if each electron
could go through both the slits simultaneously,
like a wave.
from this we can conclude that,
the electron takes all the possible paths to reach the screen.
that means, all the alternate histories exist.
only when we observe it, its wave-function collapses
and we see only one of the many possible outcomes.
so, does that mean that all the other possibilities are lost?
well; no.
for understanding this in a simple way, we
will revisit the Schrodinger's cat experiment.
again, we would recommend
you to watch the episode suggested now,
so that you can understand
what we will discuss further in this episode.
as we know that, when something is not observed,
its in a superposition of all possible states, until observed.
same principle applies with the Schrodinger's cat.
when the cat is in the box with the nuclear device,
until someone observes it,
it is both dead and alive at the same time.
but when it is observed,
we see only one of the possible outcomes,
because the universe splits into several branches
where every possibility happens.
so,if you have not yet opened the box, but are about to.
and after opening, you see that
the cat is alive.
you see it as alive because,
the universe has split into various branches,
and this version of you are in the branch of the universe
where, the poisonous gas has not killed the cat.
but, there is another version of you: who
has seen that cat die.
only it happened in some other reality.
both the possibilities are originating from a probabilistic event.
this means for every decision you make,
the universe splits into alternate realities.
and there are infact, near infinite versions of you.
all of them, doing and being everything,
that even YOU might have never imagined.
all of them, with a different life story .
these parallel worlds hold every possibility
that can ever happen.
there is a universe where terrorism never existed.
a universe where you are the most powerful person on the planet.
or a universe where you're not even a human being.
every thought exists.
this picture, of the infinite worlds
with infinite possibilities, has changed the way
we see our world.
all thanks to physicist Hugh Everett,
who first proposed the many-worlds interpretation
of quantum physics.
finally:
to sum up everything in one sentence, we'll say,
anything that can happen, Does happen.
so guys, thanks for being such a good audience in this universe.
we're fortunate to have viewers like you.
if you have not yet subscribed to our channel,
go on: and subscribe to catch all our future episodes.
share this episode with your friends, your family, your colleagues and anyone you feel.
give us a thumbs-up if you liked this episode.
and give us your feedback in the comment section below.
we'll see you in our next episode.
till then, stay curious and have a nice day.
hey! here are few other videos you can watch.
and if you want to suggest any topic for an episode,
let us know in the comments below.
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