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Comment by gerbilly | Hacker News Reader

Awesome thread, where body builders argue about how many days there are in a week: https://forum.bodybuilding.com/showthread.php?t=107926751

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Wow that thread is gold hahaha! Bodybuilders making a classic programming off-by-one fencepost error https://en.m.wikipedia.org/wiki/Off-by-one_error

Yes! I have been looking for a name for this type of error for a long, long time.

|{i, i+1, i+2, ..., n}| = (n - i) + 1 is a little clunkier to say

Also known as an 'Obiwan error'.¹

1: http://www.catb.org/~esr/jargon/html/O/obi-wan-error.html

Glad I could help! So satisfying to find a concise name/explanation/rule/heuristic for describing complicated phenomena. ^_^

It is reviewed at length by the incredible Jon Bois (you might know him as the author of 17776): https://www.youtube.com/watch?v=eECjjLNAOd4

Omg, this is awesome. I love this quote:

> "You don't count what day it is when counting days, I just explained that. If today is SATURDAY, it's not 2 days until SUNDAY now is it?"

The sheer concept that Sunday to Sunday = 1 week versus Sunday to Saturday = 1 week is kind of bending my brain.

"Sorry to hijack, but Josh dude how are you arguing with a calender?"

"He is in Josh world. The g'damn dumbest world in the universe!"

Classic. Reminds me of arguing Xbox vs Playstation as a teen on neogaf.com.

This whole article takes me back to the late 90s/early 2000s gaming message boards when NeoGAF was simply "Gaming Age Forums".

A lot of shit talking, and some on-topic discussion about gaming every now and then.

What a wonderful time to have been a teen.

Shit talking/posting on gaming forums do still exists. I joined a 20-year old forum 2 years ago and some thread are funny and some threads are on-topic

Just so I'm clear we're all team Justin, right?

Sun -> Mon = 1, Mon -> Tue = 2, Tue -> Wed = 3, Wed -> Thu = 4, Thu -> Fri = 5, Fri -> Sat = 6, Sat -> Sun = 7

So Sun -> Sun = 7 days = 1 week!

OP's mixing duration with a "period" of time.

Thank you for sharing. I haven't laughed that hard in a long time. This was my previous favorite bodybuilding thread: https://forum.bodybuilding.com/showthread.php?t=161809003&pa...

That's up there with the original frogtech bulk https://forum.bodybuilding.com/showthread.php?t=174863921&pa...

  A WEEK IS NOOOOTTTTT SUN-SUN!!!! IT'S SUN-SAT, S-E-V-E-N-DAYS!!!!

  Sun-Sat is only 6 days?!

  Sunday ONE
  Monday TWO
  Tuesday THREE
  Wednesday FOUR
  Thursday FIVE
  Friday SIX
  Saturday SEVEN

  Arizona public schools=FAIL

Oh my lord that is hilarious.

Another hilarious thread from bbf: https://forum.bodybuilding.com/showthread.php?t=139812923&pa...

This seems to have taken the role of the Onion's Outkube project:

https://www.theonion.com/new-decoy-website-launched-to-lure-...

It was actually implemented and comments were just going wild. Here is one thread on the WaybackMachine:

http://web.archive.org/web/20120214071531/http://outkube.com...

Now the ultimate argument for gym goers, do you count the bar?

http://i.4cdn.org/fit/1554264639754.jpg

This is like an argument about 0-based vs 1-based arrays.

But that's a style choice, not a mathematical error.

Hilarious! Reminds me of the classic Fark streetlight thread, which sadly has lost all of it's images looks like:

https://www.fark.com/comments/2618004/WTF-did-I-just-take-a-...

This is probably the funniest forum post of all time, it was the first thing I thought of when I read the title here, unfortunately it ends on a depressing note:

> My point was proved by smarter people, if you take a single week, not two weeks, just a single week, and workout every other day, you can workout 4 days a week, the end, stop bitching.

Very funny. I also am often in a discussion where I develop some theory about something and only after a while start thinking "Huh? What am I talking about? This makes no sense.". Happens to the best of us.

This is priceless. Thank you.

Thanks for that, extremely entertaining, fun to read! :)

"That's terrific you have alot of money. Can you lend me $800? I'll pay you back $100 every other day for 2 weeks. Sound cool?"