Live data from Hacker News

Wikenigma – an Encyclopedia of Unknowns

wikenigma.org.uk

41–47 of 47 posts

Re: Wikenigma – an Encyclopedia of Unknowns

#41

Apparently philosophers don't know what holes are: > https://wikenigma.org.uk/content/philosophy/holes

That’s funny because the concept of a gap or void as a fundamental part of the universe has been around for thousands of years.

https://en.wikipedia.org/wiki/Chaos_(cosmogony)

Re: Wikenigma – an Encyclopedia of Unknowns

#42

so basically one of the articles talks about why there should be an equal amount of matter and antimatter in the universe but in reality we havent been able to find antimatter, is it possible that our entire observable universe is a small area with matter rich concentration and there exists a much much bigger structure of the order of 1 decillion light years where random areas have concentrations of matter and antima…

That would violate the Cosmological principle - the idea that viewed on a sufficiently large scale, the properties of the universe are the same for all observers. Also the Copernican principle - the idea that our observation point in the universe is pretty average and not overly special.

Of course both of these principles aren't strongly supported by evidence. They are still usually assumed because they keep cosmology sane and verifiable.

Re: Wikenigma – an Encyclopedia of Unknowns

#43

This is super fun! But I'm not super clear why it's a site of its own, rather than a list on Wikipedia? Surely it's a list as serious as: https://en.wikipedia.org/wiki/List_of_common_misconceptions Or is there something less objective about it?

[flagged]

Wikipedia being too political is a hard problem to fix but the ads and begging for money has an easy solution; Make an account, got to preferences -> banners and uncheck fundraising and whatever else you don't want to see.

An account is useful in many other ways too

Re: Wikenigma – an Encyclopedia of Unknowns

#44

Hit the random button a few times and every article was bird-related. Every time I see a bird up close I’m struck by how weird they are, but I didn’t realise they were quite so mysterious.

I must’ve hit the random button 10 times and haven’t seen any bird related mysteries

Re: Wikenigma – an Encyclopedia of Unknowns

#45
post #30

Apparently philosophers don't know what holes are: > https://wikenigma.org.uk/content/philosophy/holes

Mathematicians, meanwhile, have multiple answers: https://m.youtube.com/watch?v=ymF1bp-qrjU

Never would have thought Holes getting so complicated.

I think I need classes on Topology and Knots.

Re: Wikenigma – an Encyclopedia of Unknowns

#46
post #3

Does it have an entry for what we don't know we don't know?

https://www.theuncertaintyproject.org/tools/rumsfeld-matrix

TIL there is a name for this.

> In 2002, during a press briefing about the Iraq War, Donald Rumsfeld famously divided information into four categories: known knowns, known unknowns, unknown knowns, and unknown unknowns. These distinctions became the basis for the Rumsfeld Matrix, a decision-making framework that maps and evaluates the various degrees of certainty and uncertainty.

Wiki page: https://en.wikipedia.org/wiki/There_are_unknown_unknowns

Re: Wikenigma – an Encyclopedia of Unknowns

#47
post #33

Earlier quoted context omitted.

Get a large enough population and you'll be able to get volunteers for any conceivable experiment.

I’m not sure. Imagine you want to answer the research question of how people come to adopt certain beliefs. You can probably answer that robustly by monitoring absolutely all their cultural inputs - including throughout childhood where these inputs likely have high impact, but where consent for such an experiment is likely impossible. Every book they read, every website they visit, every person they listen to. I thin…

You could get permission from the parents to install the recording devices, but until the child is grown up the data could be kept locked away somewhere completely inaccessible. Then when the child is old enough to grant permission you unlock that data for use. This sort of pattern should work for all studies involving children.

Honestly though, most of these kinds of studies would probably just stop at getting permission from the parents.

Post reply on HN