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This series from 3blue1brown is also an excellent (re-)introduction. Maybe not deep enough to prepare you for relativity, though.

https://www.youtube.com/playlist?list=PLZHQObOWTQDMsr9K-rj53...


His videos are good for giving intuition (I also liked the linear algebra ones), but it's really easy to fool yourself into thinking you understanding things better than you do, so you really need to work a lot of problems too.


PBS Space Time did a recent episode on higher spacial dimensions and gravity.

https://www.youtube.com/watch?v=3HYw6vPR9qU


The delivery on this program is extremely annoying and slow paced (and rushed on points that ought be slow).

:(


I think the delivery is good and paced just right.


Keep watching. It's a series that covers a lot of great spacetime and quantum physics topics from a rare perspective.

Also, go through the older videos. A lot of what's covered today builds on the previously released shows.


It's designed to be watched at 1.5x speed

then it sounds like normal speech.


> Depressed people need to make changes to their lives. You can't do that when you have someone being your crutch.

You also can't do that without a great support network. That piece is critical in the path to recovery, and you should not so arbitrarily dismiss the possibility that to many people, family (spouse, parents, even children) is that support network.


> The Canadian policeman offers to carry her baby as she makes her way through the slippery snow path. She hands the child to him and then takes the hand of another officer who helps her to the road on the Canadian side. The police bring out a child car seat and place it in their cruiser.

Give me your tired, your poor, Your huddled masses yearning to breathe free, The wretched refuse of your teeming shore. Send these, the homeless, tempest-tost to me, I lift my lamp beside the golden door!

We used to be this kind to those seeking safety in our lands. When and why did we stop?



What's important to note here is that in each case there was a large influx of people from a different culture who congregated in areas (think Chinatown) and took time to fully integrate into the current society. It is NORMAL for people to be apprehensive about new people from different areas who move into an area and change how things were (how the years liked it). I think it's important to be mindful of this, and not immediately start with calling those people racists, or idiots, or whatever, and recognize that a successful immigration policy must at its foundation be a slow, smooth influx, and not a shock to they system.


Sock puppet!


Also, we don't ever talk about this (although it affected many more poeple) https://en.m.wikipedia.org/wiki/Mexican_Repatriation

> In 2005, the State of California passed an official "Apology Act" to those forced to relocate to Mexico, an estimated 1.2 million of whom were United States citizens.


To be fair, Canada doesn't have the rosiest history in regards to immigration. My point being, if they can change, so can we.

https://en.wikipedia.org/wiki/Chinese_Immigration_Act,_1923

https://en.wikipedia.org/wiki/Japanese-Canadian_internment

http://www.cic.gc.ca/english/multiculturalism/holocaust/hist...


So maybe we never were. But we could be. IMO, Canada is setting a great and kind example here (humane treatment of incoming refugees and a 24 hour turnaround of detained individuals/families).

It should be us doing this at the Mexican border. Instead we're building a wall...


Why should someone who broke the law and cut in front of others, legally waiting to immigrate, be given amnesty?


Because the system is broken and should be reformed until there's no need to jump the queue. That's the symptom, not the problem.


People breaking the rules isn't indicative of a broken system. People do take unfair advantage sometimes.


America used to need more people to settle newly captured lands.


Yeah, sort of a myth, even pre-constitutional.

Rhode Island was founded because the Puritans quite like what Roger Williams had to say. Ben Franklin was noted of making a remark about there being too many Germans. The Potato Famine brought Irish emigrants and with it slurs ('mick') and hatred against that demographic. The Southern Italians weren't considered white when they came around (also had their slurs coined, 'dago, 'wop', 'guinea').

A sudden (or continuous, but seemingly overwhelming) influx of an overwhelming amount of people who are "new" upsets the ecosystem. If me and, say 30 of my (relatively) leftist, mostly-holding-graduate-degrees friends (and their spouses, etc) all moved to a small-town in West Texas, surely we'd be looked upon as differently. It wouldn't be because I had brown skin (which I do, and there might be a little bit of 'hmm that fella looks kinda strange' at first). I can tell you from contracting all around the world from rural Alabama to Beijing, that the reason my buddies and I would be singled out would be our mannerisms, our speech patterns, our dress, our modes of communication, and what we consider polite. (I.e., when I'm in NYC, I may see a friend sitting having a coffee al fresco. He's busy on his iPad, I'm late for a meeting - I'm not going to stop and say hello. Contrast that to someone who might take that as a snub and potentially harvest resentment for years.)

This allows me to segue onto a tangent and make an important sociological distinction (it's somewhat relevant, I swear).

Lets say grew up in a small town in Alabama where your pa and all his kin have been for damn near 3 generations. It's completely reasonable to be slightly off-kilter when an aggregate of people disrupt the stability of your living situation. Your memories were formed in that town, you're invested in all sorts of ways in that town - emotionally, financially, you name it. Your memories were formed in that town. The money you made from mowing lawns when you were 12 (do kids even do that now, or do they just Instagram and yell at their parents?) was spent at that local ice cream shop. You had your first kiss in the back your dad's car after you and that girl shotgunned a joint in the school parking lot cutting class. There's still a blood stain on concrete of your parents houses driveway from when you hit on that jock's girl and he came around and broke your jaw (OK, that one didn't happen to me, but you see what I'm getting at, I hope).

That doesn't make you inherently racist, it makes you upset at the prospect of losing some stability you used grew up with and expected (however reasonable or unreasonable those expectations were) to have. Now, if I come around with my buddies, we buy your parents house, knock it down and throw up some ugly McMansion, get a 30 year lease on that ice cream shop's property, knock that down and replace it with a raw-food vegan or fair-trade we-only-serve-black-coffee-here cafe. You'd be upset at the culture shift and not because some brown dude did it. There are certainly racists out there, there's been this media depiction of any Trump supporter being one. This is problematic because it not only does it mask the real issue (there are active neo-nazis out there, burning crosses, and sitting around hating everyone as their Friday recreational event) but it divides the country even further down political party lines.


Virtue was more easily feigned when they looked like us and thought like us.


And they were still shit all over for two generations after coming here. It's not so very long ago that Irish, or Italians, or Poles were thought of as not fully "white".


Not sure why you've been downvoted. I feel the same way. I have no clue what this even is from the linked content.


You can tell what it is from the title. Super Mario is a popular video game character and has been for over 30 years. This is clearly a video game. Good job on being facetious though.


In all seriousness, based on the ad I was thinking this was some sort of Mario-themed AR game similar to Pokemon Go. It's not clear to everyone.


Exactly what I thought too, man. Don't listen to these people. They aren't providing useful responses.


Why do several people here think that "it's a video game" has any merit or descriptiveness to it?

It's obviously a video game. The real question is, what kind of game is it? And this question was not answered by the video. Plain and simple.


I just replied to one of your other comments where I argued that the title was enough to tell you everything you need to know. But I guess I can see how other people wouldn't see it that way.

For me, the fact that it is a game named Super Mario Run, made by Nintendo, for the iphone, instantly tells me that it will be a side scrolling runner-style game featuring Mario in Super Mario Bros style levels, with basic touch controls. In fact it occurred to me that I hadn't verified these assumptions and I just checked out the about page and found that it looks exactly like I expected.

I guess some people make the exact same assumptions I do, and this is totally not obvious to others, hence all of the miscommunication and arguing in this thread.


I replied to your other comment, and my stance is unchanged.

You got lucky in assuming what the game would be about. If you had done the same thing with other games (e.g. Pokemon Go) you would have completely missed the opportunity to discover a new kind of game.

I advise not judging things by their cover, unless you want to risk not discovering something new.


However, there is an abundance of information on the site about exactly what kind of game it is.

I won't defend the site design - it should be easier to get to https://supermariorun.com/en/about.html, but it still takes very little effort to find this.


This article focuses on the cop/vet, but what I'm stuck on is that the 911 center didn't convey the complete report to the police - that the caller reported the subject's gun was not loaded and that his goal was to get shot. That seems like critical information to communicate to the police so they can respond appropriately.


Having worked as a dispatcher, I can say that my training would have led me to get that information to the incident commander for the area (the "boss" of the cops that responded inluding Mader), but not via radio. I would have had a coworker relay the information to the IC via cellphone or telex.

Even so, that information may or may not have saved the subject's life. The IC could have decided the information is unsubstantiated and not have relayed it to the responding officers, or if he had relayed it, the one who took the fatal shot may still have felt enough of a threat to take the same action.

One more thing: I feel that Mader (the cop who initially responded) acted correctly in trying to talk the subject down, but when the man started raising the hand with the gun, Mader would have been justified if he had fired his weapon as well (remember, no cop on the scene knew the gun wasn't loaded).


That was the case with Tamir Rice as well. The dispatcher didn't relay that the caller twice said the gun was probably a fake and the kid was a kid. Two seconds after they arrived, Tamir was dead.


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