Happy Birthday, Markus_Persson!

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Ah, that birthday paradox is so often misinterpreted, it’s not funny.

When you pick 1 random person, there is a chance of 1/365 that he/she shares the same birthday with another random person. Almost perfectly evenly distributed!

The birthday paradox is about a group of N people, and the chance that there is at least 1 pair in all possible pairs, that shares their birthday.

Precisely - so the sinister coincidence that started this diversionary thread was in fact not a sinister coincidence at all, but almost a complete certainty that someone in here was going to have the same birthday as Markus!

Cas :slight_smile:

Actually, that’s not the birthday paradox either. :smiley:

The odds of someone out of a group of 50 people having the same bday as me is 1-(364/365)^49, or about 12%.
The odds of two people out of a group of 50 people having the same bday as each other is about 97%.

The “paradox” lies in people understanding the first one as true (it’s fairly simple math), but being suprised of the second one. It’s related to the pidgeon hole principle.
No matter how large the group is, the odds of someone having the same bday as me will never be 100%.
But for a group of size 366 or larger, there’s always a 100% chance of two or more people having the same birthday.

This is what happens when someone mentions coincidence on a programming forum :smiley:

haaahaaaahaaaa.

:smiley:

I love every single one of you!

I assume you are replying to Cas?

As we were saying the same thing:

Anyway, how’s life, at 30?

It’s like 29 but everything hurts :wink:

Cas :slight_smile:

Just remember, the warranty on your body expires at 30. After that, stuff starts to fail, so give it proper maintenance =)

arf… I looked everywhere and cant find any ctrl+z to get back to 30 :’(

Wait till you start knocking on 40’s door :wink: Just turned 39 this past April…

…or have heard it slam behind you…

PS Good that you’re back! :slight_smile:

30 was sadly 6 years ago for me… middle age looms.

Cas :slight_smile:

I was replying to cas, yes, but I wasn’t very serious anyway, just nitpicking. :wink:

And life’s pretty darn great at 30!
I started my new job on my bday and also got really going on minecraft, so things are really going well for me at the moment.

I turned 38 on June 7th and nobody on this forum wished me a happy birthday :’(

Of course I haven’t been around in months either ;D

Happy friggin’ birthday! Woooo!

That better? :slight_smile:

I didn’t quite get the warm fuzzy feeling I was hoping for… but it will do ;D

I know this thread is a week or two old but I want you all to know that I had a lot of fun reading it! It basically made my night. It took about what, 8 posts for the thread to become an argument about probabilities?

Priceless!

Happy very-much-belated birthday, by the way.

This is why happy-birthday threads should be banned.

Normally, I’d agree. But this time it was about me. :smiley: