How Random Numbers Are Generated

How can a completely predictable computer generate unpredictable random numbers?
----------------------------------
Sources:

[randomcommenterphd]

I was keeping this undying question on the back burner for so long, but today I decided to search it on youtube. It's awesome that we all unknowingly harbor the same curiosity. Nice video!

[KidTrigger]

I’m suprised you only got 13 subscribers bro your video is like a professional video

[ProdTony-gfhh]

I clicked on this video expecting garbage quality. You proved me wrong. Congrats. P.S. You just earned a sub

[BankDief]

Well i have to say you earned it. Hope one day you will be up there. Making decent money.

[levero]

*just subscribed.*
This guy got high quality videos, hope he get the attention he deserves ^_^

[nbksrbija]

That dislike you used to have on this video wasn't actually malignant, I just have fat fingers and accidentally clicked the dislike. Now I turned that into a like :) Awesome video

[Taco_Burrito]

Aren't Humans also generating Pseudorandom Numbers?

[binayaksubba]

This video is soo underrated... Keep it up

[samuelhailemichael]

This is just the best. You earned my sub.

[paramjitsarkar]

The thing is, any pattern that we don't have knowledge of seems random to us. So, everything is pseudo random, nothing is ever really random.

[fjordobelisk]

Humans are not in fact good at generating random numbers, you will pick the numbers 4-8 way more often than not and in a stream of truly random numbers there is a chance that you will get the sequence or which no human will supply.

[vrytied]

I Cant believe i learned something today i thank you

[jono]

Thanks!
I always askey myself that...