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Graham's Number

en.wikipedia.org

11–20 of 27 posts

Re: Graham's Number

#11

It seems like the real character here is Graham, who I've never met, but I do have a story about his collaborator Bruce Rothschild, who was my professor for junior-level linear algebra. In those days, you either gave your professors little self-addressed stamped postcards to tell you your grade, or went to their offices to ask them. I took the latter approach with Rothschild. "What grade were you expecting?", he repl…

Was he joking?

Re: Graham's Number

#13

It seems like the real character here is Graham, who I've never met, but I do have a story about his collaborator Bruce Rothschild, who was my professor for junior-level linear algebra. In those days, you either gave your professors little self-addressed stamped postcards to tell you your grade, or went to their offices to ask them. I took the latter approach with Rothschild. "What grade were you expecting?", he repl…

Was he joking?

He wasn't serious but he would have been interested in a quick answer. I didn't get it cause I couldn't think of a quick way to know what a reasonable upper bound for the serial number is (I believe they're printed sequentially). To be fair the guy spent his whole career learning how to count things!

Re: Graham's Number

#14
post #7

Before clicking on the link, I thought for some reason this would be article explaining how Paul Graham had got his own number, much like the Erdos number http://en.wikipedia.org/wiki/Paul_Erd%C5%91s#Erd.C5.91s_numb... .

How many steps removed are you from starting a company with Paul Graham...

I read hacker news, so 1?

Re: Graham's Number

#15

It seems like the real character here is Graham, who I've never met, but I do have a story about his collaborator Bruce Rothschild, who was my professor for junior-level linear algebra. In those days, you either gave your professors little self-addressed stamped postcards to tell you your grade, or went to their offices to ask them. I took the latter approach with Rothschild. "What grade were you expecting?", he repl…

I TA'd for Graham's Discrete math class at UCSD. He's still quite the character! His last lecture he juggled a handful of chalks in class and brought his deck of cards to do magic tricks. He once made me pull out a 1$ bill from my pocket in his office and then asked me what the serial number was, he shot out a question like: "what's the probability that you have n consecutive numbers on the bill". You could tell Math…

You were playing Liar's Poker.

Re: Graham's Number

#16
post #15

Earlier quoted context omitted.

I TA'd for Graham's Discrete math class at UCSD. He's still quite the character! His last lecture he juggled a handful of chalks in class and brought his deck of cards to do magic tricks. He once made me pull out a 1$ bill from my pocket in his office and then asked me what the serial number was, he shot out a question like: "what's the probability that you have n consecutive numbers on the bill". You could tell Math…

You were playing Liar's Poker.

He probably played it differently from most people though

http://quant.stackexchange.com/questions/4201/strategies-for...

Re: Graham's Number

#17
post #6

Here's an excellent and brain melting expose of Graham's Number: http://waitbutwhy.com/2014/11/1000000-grahams-number.html

Thanks for finding it and linking. That has got to be one of the most entertaining (and educational) math articles that anyone can read/understand.

Some of my favorite parts (minor spoilers):

> Look closely at that drawing until you realize how not okay it is. Then let’s continue.

> Then Graham decides that for g2, he’ll just do the same thing as he did in g1, except instead of four arrows, there would be NO I CAN’T EVEN arrows.

Re: Graham's Number

#18
Graham is the coolest UCSD professor I have ever had a conversation with. I remember a particular instance, at the beginning of my first quarter at UCSD. I wasn't familiar with his work and had never heard of him. My naive 19 year old self walked into his office hours asking some simple probability question. I noticed a cast on his hand and inquired about it. He jokingly said he got a cut because he was juggling ice skates. I thought he was joking. I went home and looked him up, only to find that he was the head of the national jugglers association at one point. Pretty awesome guy.

Re: Graham's Number

#19

It seems like the real character here is Graham, who I've never met, but I do have a story about his collaborator Bruce Rothschild, who was my professor for junior-level linear algebra. In those days, you either gave your professors little self-addressed stamped postcards to tell you your grade, or went to their offices to ask them. I took the latter approach with Rothschild. "What grade were you expecting?", he repl…

Was he joking?

Yes. Anything else would have been ... problematic.
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