cll7793

joined 1 year ago
[–] cll7793@lemmy.world 8 points 8 months ago* (last edited 8 months ago) (1 children)

Vsauce is awesome! He makes you question everything after each video!

Also...

[–] cll7793@lemmy.world 4 points 8 months ago* (last edited 8 months ago)

Some of my favorites are from Edward Frenkel and the Langlands Program. In analogy the Langlands Program can be thought of as the "Theory of Everything" of mathematics linking various seemingly disconnected fields together.

Another great video is from 3b1b where he shows Pi somehow emerge from 2 blocks colliding against each other.

Links & Resources

 

What are your favorite mathematics channels/videos on YouTube?

There are tons of great videos on YT, but I'll list some resources from 3Blue1Brown's SoME3 contest if you want to discover more math explainers.

SoME3 Resources

This is a continuation to my original "What are the most mindblowing things in mathematics?" post.

Additional Resources

[–] cll7793@lemmy.world 1 points 8 months ago

Please solve the partial differential equation to continue watching the video:

"I am not a robot" captcha is getting too hard...": https://www.youtube.com/watch?v=ru6fi4O4lp4

[–] cll7793@lemmy.world 3 points 8 months ago* (last edited 8 months ago)

Your comment belongs higher. When given the opportunity to make money by social media advertising sometimes in the thousands or millions, companies, share holders, and conflict of interest groups take it. Cablemod's burning adapters, cryptocurrency scams, payed positive youtube reviews are some great examples. In general there is no honor system and its best to assume anything that can be abused will.

Also manipulating votes is incredibly effective towards swaying public opinion due to the bandwagon effect. Spend a days worth of effort making fake accounts and downvoting any opinion you see as undesirable and most people will follow suit. This is especially bad in echo chambers like on twitter, reddit, etc.

I wish a broader audience could be aware of this. The best I can do is try to spread the word.

Sources:

[–] cll7793@lemmy.world 2 points 8 months ago

Self hosting is smart! Usually good things always come to an end, at least if they are not open sourced.

[–] cll7793@lemmy.world 13 points 8 months ago (2 children)

The Patriot Act and Snowden's leaks have shown companies will go against their privacy policy to appease governments. Search engines especially are targeted by five eyes with the PRISM program where copies of all your data, linked to your payment, are sent to Five Eyes and stored. Gag orders and legal threats prevent disclosure, as has been done with prior tech companies who have tried to push back against this.

Be wary of trusting corporations with your data as monetization is a powerful incentive.

[–] cll7793@lemmy.world 8 points 8 months ago (2 children)

Valve is great! Private and non-profit organizations give me some hope for a better internet one day.

Regarding Kagi, there are other potential concerns with privacy, data leaks and price gouging as well. The Patriot Act and Snowden's leaks have shown that companies will lie in their privacy policy to appeal to authorities even if they claim they are not storing information. All your health related searches, sensitive personal details, private life, etc is also always linked to your payment method waiting for a potential data leak if they are lying. (Or a copy is just sent to five eyes)

All that is to say, be wary of trusting your privacy to companies. Monetization is a powerful motivator!

[–] cll7793@lemmy.world 19 points 8 months ago (6 children)

I'm worried eventually even Kagi will get enshittified. It has been a common trend that almost always occurs. Open source is the only way to ensure stability. Conflict of interest is what leads to companies either overcharging, or even accepting to get bought out.

Don't get me wrong, Kagi seems to be a great company thus far! But for something as important as search it would be best to have an open source solution.

[–] cll7793@lemmy.world 5 points 8 months ago (2 children)

Hmm, I did notice a sudden severe drop in quality recently. Perhaps they are A/B testing something.

[–] cll7793@lemmy.world 1 points 8 months ago

Thanks! Never given brave a try before

[–] cll7793@lemmy.world 14 points 8 months ago

Altavista was ahead of their time. The modern internet desperately needs a technical search engine.

[–] cll7793@lemmy.world 7 points 8 months ago (14 children)

I've heard a lot of great things about Kagi, though the search limit and subscription is a little off-putting. A self-hosted Kagi would be amazing though!

 

It is becoming near impossible to find relevant information from search engines. Duckduckgo, SearXNG, Bing, Google, and so many more mainstream engines have a significantly high noise to signal ratio, and it is getting worse.

Here are a collection of the best search engines I know, please add more to the list.

If no more high quality search engines exist, would it be possible to host your own?

EDIT: Some new discoveries. The addon uBlacklist and filters can block super SEO sites from appearing in search.

 

What concepts or facts do you know from math that is mind blowing, awesome, or simply fascinating?

Here are some I would like to share:

  • Gödel's incompleteness theorems: There are some problems in math so difficult that it can never be solved no matter how much time you put into it.
  • Halting problem: It is impossible to write a program that can figure out whether or not any input program loops forever or finishes running. (Undecidablity)

The Busy Beaver function

Now this is the mind blowing one. What is the largest non-infinite number you know? Graham's Number? TREE(3)? TREE(TREE(3))? This one will beat it easily.

  • The Busy Beaver function produces the fastest growing number that is theoretically possible. These numbers are so large we don't even know if you can compute the function to get the value even with an infinitely powerful PC.
  • In fact, just the mere act of being able to compute the value would mean solving the hardest problems in mathematics.
  • Σ(1) = 1
  • Σ(4) = 13
  • Σ(6) > 10^10^10^10^10^10^10^10^10^10^10^10^10^10^10 (10s are stacked on each other)
  • Σ(17) > Graham's Number
  • Σ(27) If you can compute this function the Goldbach conjecture is false.
  • Σ(744) If you can compute this function the Riemann hypothesis is false.

Sources:

 

An Internet Portal is an information hub connecting you a much wider portion of the internet.

For example:

What Internet Portals do you know of that you would like to share?

 

Search engines have been dropping in quality significantly within the past decade, and especially within this past year. The noise to signal ratio has been frankly painful.

Can you please share some resources you use when trying to find answers to technical questions?

For example, STEM, academia, engineering, programming, etc.

 

The quality of search engines has gone down so much for technical questions.

I'm looking for a way to index sites like stack exchanges, reddit, quora, and research papers. Would this be possible to do this locally with metadata?

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