2018-12-18

[public] 6.51M views, 444K likes, 4.31K dislikes audio only

Vsauce2

How many people need to be in a room before there’s a 50% chance that two of them share the same birthday? Is it about 180, since that’s around half of 365? Is it only 100? The real answer is surprisingly much, much smaller.

If you have just 23 people in a room, the odds of whether two get presents on the same day is a coin flip. Get 50 people together and that shared-birthday probability skyrockets to 97%. A handful more and it’s a virtual statistical certainty.

Really? Yes, really! With the aid of tiny plastic babies and some mathematics, Kevin proves and visualizes this surprising veridical paradox.

**** LINKS ****

Birthday Attack Example In Hacking

https://www.youtube.com/watch?v=4shxYyV4O_k

Birthday Attack Hash Collision

https://www.youtube.com/watch?v=18ihbf1EqRw

Hashing Algorithms And Security - Computerphile

https://www.youtube.com/watch?v=b4b8ktEV4Bg

Discussion On The Birthday Attack

https://www.youtube.com/watch?v=2bEL3ok8D70

The Birthday Attack

https://danielmiessler.com/study/birthday_attack/

***********

Vsauce2 Links

Twitter: https://twitter.com/VsauceTwo

Facebook: https://www.facebook.com/VsauceTwo

Hosted, Produced, And Edited by Kevin Lieber

Instagram: http://instagram.com/kevlieber

Twitter: https://twitter.com/kevinlieber

Website: http://kevinlieber.com

Research And Writing by Matthew Tabor

https://twitter.com/matthewktabor

Huge Thanks To Paula Lieber

https://www.etsy.com/shop/Craftality

Get Vsauce's favorite science and math toys delivered to your door!

https://www.curiositybox.com/

Select Music By Jake Chudnow: http://www.youtube.com/user/JakeChudnow

MY PODCAST -- THE CREATE UNKNOWN

https://www.youtube.com/thecreateunknown