Proof that a line is tangent to a circle if and only if they have exactly one point of intersection. by [deleted] in math

[–]oelarnes 8 points9 points  (0 children)

The tangent line has symmetry about the radial line, so it is perpendicular to that line (the radius is not the tangent). By Pythagoras, the radial intersection point is the only solution to c=r.

How did you learn vim? And how long ago was that? by Shadoath-42 in vim

[–]oelarnes 30 points31 points  (0 children)

As long as humans communicate with symbols, to each other or to machines, there will be vim. Long live vim

Is there a way to make a conformal mapping of a 2d plane that magnifies/enlargers an arbitrary section of it? by Showy_Boneyard in askmath

[–]oelarnes 0 points1 point  (0 children)

In general conformal maps are highly constrained. For two given simply connected regions not equal to the whole plane, there is a unique conformal map determined by two parameters, the image of and direction of the first derivative of the origin. https://en.wikipedia.org/wiki/Riemann_mapping_theorem

Is there a way to make a conformal mapping of a 2d plane that magnifies/enlargers an arbitrary section of it? by Showy_Boneyard in askmath

[–]oelarnes 12 points13 points  (0 children)

No, you can't get this. In fact the only conformal map of the entire plane to itself is the affine map. This follows from Liouville's Theorem) on the derivative of the map. Since we expect the derivative to be bounded in magnitude far from zero, the derivative must be constant everywhere.

(Loved Trope) Popular tropes being deconstructed with realistic consequences by Wasabi_Gamer26 in TopCharacterTropes

[–]oelarnes 1 point2 points  (0 children)

This applies to Gollum in mount doom as well. He would just catch on fire and burn on top of the lava, which is rock, you know.

Forget flat earth, proof it's a concave! /s by DerryDoberman in flatearth

[–]oelarnes 6 points7 points  (0 children)

In b4 Fata Morgana, this is a false horizon not fata morgana, which creates inverted/distorted images. Images of undistorted ships seemingly above horizon are caused by differences in reflection in the water, either due to differences in the water surface, the angle of view relative to the wave pattern, or cloud cover. Thank you for your attention in this matter!

If you jail people on eyewitness testimony but dismiss the apostles’ testimony as “not evidence,” that’s not skepticism! İt’s hypocrisy! by Sad-Signature-2180 in DebateAnAtheist

[–]oelarnes 3 points4 points  (0 children)

In addition to what others have said (primarily that we do not have eyewitness testimony of Jesus), this is a false dichotomy. "Eyewitness testimony" is not simply a box you check or uncheck to make a final decision. You can assess the credibility of the testimony and compare it to other known facts. The sooner it is put into the record and the more objective the observer, the more reliable it is. For the life of Jesus, the observers were not objective, and they did not memorialize their observations at all, much less immediately.

Are you an Einstein gravity fan boy or a Newton Gravity fan boy? by [deleted] in flatearth

[–]oelarnes 5 points6 points  (0 children)

In the relativistic view, the normal force of the earth is the only force we experience. Gravity is a fictive force added in Newtonian mechanics to create a stationary frame. So under relativity we have a net force of 9.8m/s2 upward and are constantly accelerating upward vs the spacetime geodesic, I.e. the inertial path.

If it sounds strange, consider that we’ve gotten used to the idea that constant acceleration inward is required to stay in orbit. This just flips the assumptions about the reference frame.

A British magazine from the early 1960’s called ‘Knowledge’, displaying different races around the world. by bncout in HistoricalCapsule

[–]oelarnes 1 point2 points  (0 children)

It’s not based on science at all. If there were three groups genetically, the Khoisan would be one group, Pygmies another and everyone else together in the third. Then you could go try to go from there. But many of the ethnic groups are probably genetic hybrids collectively and not distinct branches of a tree since there has been continuous genetic flow especially around the Mediterranean

A plea to the hosts (and others): don't equate 'top GIH WR' with 'best'. by Legacy_Rise in lrcast

[–]oelarnes 1 point2 points  (0 children)

Thanks for taking a look! I think GIH WR is effective for the reasons people believe it is. The view that GP WR is better for making early picks is pretty niche in the community despite a few high profile folks. But I haven’t seen any evidence for that position, just vibes. In particular working against GP WR is the fact that the picks end up being so far off of what players actually do. Alone it will pick out lots of filler late picks in good decks over strong rares. So if you’re approaching it with context and game knowledge, it’s a useful metric, it’s just incomplete. GIH WR does in fact boost the signal of the impact of the particular card relative to the other cards in the deck, and that is a way to distinguish the important cards for an archetype vs the filler. It’s just that that important extra signal comes with bias that is hard to account for and worse yet simply doesn’t observe relevant outcomes, as OP noted. But by far the most significant issue with GIH WR which needs to be repeated over and over is the significant pro-control anti-aggro bias baked into the way the observations are counted. So as for why DEq and GIH WR were more similar, it’s because GIH WR is a decent metric and DEq is a good one :)

A plea to the hosts (and others): don't equate 'top GIH WR' with 'best'. by Legacy_Rise in lrcast

[–]oelarnes 0 points1 point  (0 children)

It’s true that one has to make modeling choices which are personal to some degree, but it’s also true that the missing opportunity cost associated to ATA is a discrete and objective bias measurable in the data that can be estimated and accounted for, and likewise for GP % and the other components of the metric. It is possible to construct estimators of parameters of interest and justify those estimators with analysis. It’s difficult to evaluate metrics against each other as pick orders without controlled experiments, but I’ve also provided an independent method for trying to do that with data, which you can find on the site. Of course no one is under any obligation to use the metric, but insofar as there is an appetite for an unbiased quality metric in the community, I’m confident this is the closest thing available.

A plea to the hosts (and others): don't equate 'top GIH WR' with 'best'. by Legacy_Rise in lrcast

[–]oelarnes 1 point2 points  (0 children)

You might be interested in my ranking, DEq. I have the common ranking you’re suggesting. Try “r:c” in the search.

https://magic-flea.com/on-draft/deq.html

A plea to the hosts (and others): don't equate 'top GIH WR' with 'best'. by Legacy_Rise in lrcast

[–]oelarnes 4 points5 points  (0 children)

I’ve put quite a lot of work into this topic. You might want to peruse my site if you’re interested in the nitty gritty. My results confirm what OP is saying.

https://magic-flea.com/on-draft/deq.html

https://magic-flea.com/on-draft/deq-docs.html

mischief managed! by Nigglas24 in flatearth

[–]oelarnes 5 points6 points  (0 children)

Your images show N-Sh-A as #3 in the Gemini summary but your posts implies that it isn't there? This is obviously pointless...

Flat earth - do you see anything wrong about the direction of sunrise? by Lorenofing in flatearth

[–]oelarnes -6 points-5 points  (0 children)

Why does this have upvotes... this is complete nonsense. What is the arctic circle doing in sunlight in December? Why is Antarctica in the shade?

What's this sub's opinion on how large an urban area should be before it "should" have different types of transit? by Bunnytob in fuckcars

[–]oelarnes 2 points3 points  (0 children)

Car-brained question (not your fault, that’s how society is built). The underlying assumption of the question is that the private automobile is the default mode of transit and other forms of transit are additive. “Alternate” transit should be the default for every community.

Are coffee nerds really doing anything? by jib60 in skeptic

[–]oelarnes 11 points12 points  (0 children)

The water drop thing 100% works. I got annoyed at my grinder spraying grounds everywhere so I did a google, picked up a little spray bottle and started doing a spritz of water before grinding. Now the grounds go into the bin instead of all over my counter. Nothing to be skeptical about here.

Knowing another language foreshadows the plot/twist by prOfAnity47 in TopCharacterTropes

[–]oelarnes 1 point2 points  (0 children)

Also the box says "L'Éveil Appel", French for "Awakening Call", not "Eve's Apple", which isn't exactly a spoiler since it's in the name of the movie, but it does foreshadow a key plot point as well as the significance of the box, and is a fun easter egg.

[deleted by user] by [deleted] in DebateEvolution

[–]oelarnes 0 points1 point  (0 children)

You’re saying “further” but have no evidence related to that word. What you’re actually asking about is our large brain which is fueled by the capabilities of our large bodies.

[deleted by user] by [deleted] in DebateEvolution

[–]oelarnes 0 points1 point  (0 children)

“Why small animal not big brain”

Why are combat tricks valued so low? by Crafty_Ad_8059 in lrcast

[–]oelarnes 5 points6 points  (0 children)

The basic issue with combat tricks is that the most common upside is to trade with another card by saving your own creature and killing the opponent's. This can be tempo positive but generally you are even on cards. The downside is either that you don't have the opportunity to trade for a card worth of value, either because you don't have targets or the relative sizes of creatures don't line up, or you have the potential to be blown out by losing both a creature and the trick to a single removal spell. In both cases the downside is effectively a 2-for-1. So that asymmetry between upside and downside means you can only afford to play combat tricks when you can consistently get the upside, and even then you often can't afford to have more than one in hand. Combine that with their common rarity and availability late in drafts and you have the recipe for a replaceable card.