I Made a Self-Quoting Tweet • Hacker News Board

Re: I Made a Self-Quoting Tweet

#31

Post by oneeyedpigeon » Mon, Nov 30, 2020, 10:24 PM UTC

mulmen wrote: post #24

MaxBarraclough wrote: post #22

Earlier quoted context omitted.

I'm seeing this: > This is not available to you

That's a common Twitter bug, just try again a few times.

If it's the same bug I frequently see, manually refreshing the page by hitting enter in the address bar always fixes it for me.

Re: I Made a Self-Quoting Tweet

#32

Post by OisinMoran » Mon, Nov 30, 2020, 10:25 PM UTC

suprfsat wrote: post #9

showerst wrote: post #5

> And for anyone at Twitter who was depending on the network of tweets being a Directed Acyclic Graph, I'm so terribly sorry. I love the idea that there's someone out there with code that resolves retweet chains recursively, who's about to be in for a great head scratcher of a bug.

They will have to reckon with the fifty thousand-long chain at https://twitter.com/every_peano

I actually just came across this account recently and was tempted to make some sort of reply bot on whether they were prime or not. I was also trying to find some of the "funnier" numbers to see if they had a disproportionate number of likes (certainly not to like them myself...) but gave up after realising they had almost 50k tweets.

Re: I Made a Self-Quoting Tweet

#33

Post by tyrust » Mon, Nov 30, 2020, 10:25 PM UTC

gowld wrote: post #27

chris_wot wrote: post #25

Earlier quoted context omitted.

Nope, I'm assuming that's someone on Twitter noticing what he did and hiding it.

Or the software just doesn't handle it.

Why the speculation from you and the parent? You can literally click on the Tweet and see that it works fine.

Re: I Made a Self-Quoting Tweet

#34

Post by mulmen » Mon, Nov 30, 2020, 10:26 PM UTC

chris_wot wrote: post #25

mulmen wrote: post #24

Earlier quoted context omitted.

That's a common Twitter bug, just try again a few times.

Nope, I'm assuming that's someone on Twitter noticing what he did and hiding it.

It's definitely a common Twitter bug.

"This is not available to you." is something different from "This Tweet is unavailable."

Re: I Made a Self-Quoting Tweet

#35

Post by User23 » Mon, Nov 30, 2020, 10:29 PM UTC

Writing quines is one of my favorite things to do in a new language. That it is always possible is a consequence of the recursion theorem[1], which is, in my opinion, one of the coolest results in basic computing science. I personally find it far more interesting than the halting problem.

[1] https://en.wikipedia.org/wiki/Kleene%27s_recursion_theorem

Re: I Made a Self-Quoting Tweet

#36

Post by OisinMoran » Mon, Nov 30, 2020, 10:31 PM UTC

pomber wrote: post #18

I made two mutual-quoting tweets that run the toad oscillator from the Game of Life https://twitter.com/mauritscorneIis/status/12668346972560875...

This is actually much cooler in my opinion! I love your progress indicator too. How did you go about doing this one? And what are the four parts you are referring to?

Do you think a 3-cycle is doable?

Re: I Made a Self-Quoting Tweet

#37

Post by chrisshroba » Mon, Nov 30, 2020, 10:33 PM UTC

It seems like Twitter knows not to show the quoted tweet in this case, but I wonder if it would show it if it were a 2-cycle.

Re: I Made a Self-Quoting Tweet

#38

Post by EB-Barrington » Mon, Nov 30, 2020, 10:36 PM UTC

mulmen wrote: post #34

chris_wot wrote: post #25

Earlier quoted context omitted.

Nope, I'm assuming that's someone on Twitter noticing what he did and hiding it.

It's definitely a common Twitter bug. "This is not available to you." is something different from "This Tweet is unavailable."

I have "This Tweet is unavailable."

Re: I Made a Self-Quoting Tweet

#39

Post by OisinMoran » Mon, Nov 30, 2020, 10:36 PM UTC

nneonneo wrote: post #14

FWIW, I also did this back in 2019: https://twitter.com/nneonneo/status/1177641328705851392?lang... I don't know of a better way to do this other than some analysis of the IDs + clever bruteforce. If I remember correctly, I used just over 500 tweets to do it.

This is excellent, hats off to you! I love your creative lead-in as well, mine is bland in comparison but I'm somewhat glad to be off the hook for destroying the DAG as all these prior examples are showing.

Re: I Made a Self-Quoting Tweet

#40

Post by anonytrary » Mon, Nov 30, 2020, 10:36 PM UTC

eyelidlessness wrote: post #21

anonytrary wrote: post #19

Earlier quoted context omitted.

Recursion isn't the problem. Not keeping track of seen tweets is the problem. Recursion can be used to detect cycles and traverse a cyclic graph in a way that doesn't blow up.

But you wouldn’t do that if your assumption is that the graph doesn’t cycle. Edit: child comments are correct and I regret my oversight

Graph doesn't need to cycle to hit a node twice. Good code does not visit the same node twice.