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What is Random?
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مستوى CEFR
الصعوبة
الترجمة (175 مقاطع)
Hey, Vsauce. Michael here and Derek.
Generate(!)
78? That's so random. Or is it?
What does it mean to be random?
Can anything really be random? What's the most random thing ever?
Today let's stop being random and become 'ransmart'.
If something is unpredictable,
and contains no recognisable patterns, we call it random.
So let's begin our hunt for the most random thing with a coin toss.
The Australian 50 cent coin is one of the largest coins
currently in circulation.
Coin flips and rolling dice are not intrinsically random,
they are only random because of our
ignorance. If we could know every initial condition
the exact forces and properties that play for a particular flip or roll,
we could theoretically calculate the result before it
even happened. And, sure enough, researchers have built coin flipping robots
that can precisely control a flip to get the result they want
100 percent of the time.
So here is our question. Is there anything you couldn't predict
even if you knew everything? A process determined
by nothing? And how can you be sure they're
aren't any patterns in what you're looking at? Maybe you just haven't looked
for the right pattern yet.
Or maybe you have already seen true randomness
but didn't know it because you didn't look for long enough.
As if protected by a sort of camouflage,
a random process can, and will, occasionally produce patterns.
YouTube URLs are pretty much
random. A unique one is made for every uploaded video, but sometimes,
like the proverbial monkeys typing away on typewriters,
YouTube generates a URL that contains, by chance, a word.
The official music video for 50 Cent's
'In Da Club' contains a synonym for bottom.
This video was assigned 'hello',
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