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Sharing costs generates institutional incentives to keep costs down. Individualizing costs generates institutional incentives to charge more.

Perverse incentives are the essence of what is wrong with US medical systems.

In Madrid where the average monthly pretax salary is below 1500 a shared room with four strangers costs 400-709 a month and small aprtments in bad neighborhoods cost 3000-4000 a square meter to buy.

False. I live in Madrid and being near a metro station a. Has no issues (for almost all stations) and b. is considered highly desirable. 10 minute walk is considered a lot (mine is 5, to either of the two nearby stations - at 10-12 minutes I can walk to four stations). These are genuine underground metro. They're deep and vibrations are mostly not an issue.

The article paints a somewhat biased view of the construction process. It gives too much credit to Gallardo and the pp and conveniently ignored the serious issues in the sam Fernando de Henares área created by too rapid construction that ignored environmental and design issues in the Sandy soil near the Jarama river. Several hundred apartments have been condemned because of it and a whole neighborhood affected ...

But it is the best metro I've seen in Europe or north america. Most usable and cheapest to use.

The very few cases that result in sanctions are generally horrendously flagrant.

With another professor I caught a flagrant case in a student thesis and we faced attacks from the university administration because the student had a stellar transcript (also not the positive signal some might think). Punishment was almost inexistent.

It's difficult for me to imagine what it would take to get a doctoral thesis revoked.

Absolutely inaccurate. I am nationalized Spaniard living here 2+ decades. Almost no one over 50 calls on the phone and when they do they almost always send a message first. The large public institution I work in is removing landlines completely because they get too little use to justify the cost.

I am (mostly against my will) in multiple professional and personal Whatsapp groups. Use is constant and daily and unavoidable. It is the principal means of communication in both work and personal settings. Calls are always a second option.

I suspect your experience reflects only partial integration in local culture.

Irrelevant objection.

Currently signalling support for Palestine is common online. In videogames in my country (Spain) every third player has some such signal (flag or phrase). It's not a serious protest, it's a sign of belonging to group x (whatever group x is), something teens in particular are big in signalling. It's not a big deal and reacting operationally as if it were is a huge security error.

It's certainly true in Atlanta. That "cluster of shops" can be a long way walking (10-15 minutes) from where one resides. It's small, incomplete, inadequate, etc.

I grew up in Atlanta proper, so know the city well, and later, by choice, lived there for a few years as an adult without a car and it was genuinely complicated. I chose a place to live near my place of work (near = it was 30 minutes solid walking). I had access to a supermarket (15 minutes walking), two (!) transit (MARTA) stations each at 15-20 minutes walking, and several bus lines (none with frequency greater than 30 minutes nor standard deviation less than 20), as well as the "cluster of shops" to which you refer. It had a bar, a few restaurants, a laundromat, and a drugstore. For real shopping other than food I took MARTA to a mall. My morning walk to work around 6 o 7 am required crossing a street used by prostitutes and drug dealers. They didn't bother me but the cops were suspicious of me for being there on foot and more than oncee I had to avoid cops with guns out chasing someone down.

People there generally considered me nuts for choosing to live this way.

I remember fondly that on my way to work there was a street full of pecan trees and at the right time of year I could get a handful from the sidewalk (there were sidewalks!).

When I was growing up (true, this was a while ago), again in the city proper, the nearest park was 3-4 km away. I went there by bike and played pickup basketball or went to the public pool, but it wasn't exactly nearby, and it wasn't walkable. Ice cream bars could be bought at a convenience store several km in a different direction. The bus stop was near the park and the bus came every 50 minutes, with considerable variance. On it it took something like 40 minutes to get to a MARTA station. A single to and back trip on public transport could easily take 3-4 hours in total so I didn't do this often. My school was around 12 hilly kilometeres away, a bit longer if one avoided the interstate. Biking there required riding on heavily congested roads with no shoulder and dealing with drivers completely incomprehending of cyclists and later crossing 8 lane roads and facing considerable danger the whole way. It could be done and I did it, but it was not particularly safe as there was no way to get there without dealing with rush hour traffic accessing the interstate.

I vaguely remember that there was a store within walking distance that sold automobile tires ...

There are major US cities where this is not the cae. Atlanta is an example. I've lived there without a car, but as a single man in my early 30s. It was not easy even for someone committed to the task. Even in the most "urban" parts of the city there are very few stores within walking distance, very few people on the street, and the distances are huge. Public transport (how kids in cities get around) is terrible. A kid might be able to walk to a park were he/she to live near one bit almost no one does.

My grandfather was a student of Kistiakowksy and worked on the simultaneity part of the firing unit and was present at the assembly of the bomb and to watch the detonation. He recounted being quite nervous that his contribution would fail (as it had a short while before the final test) and the test would be a dud, but no one involved seriously in the scientific and engineering part of the building of the bomb had serious doubts that it would work once the technical issues were overcome, and none of them worried that it would ignite the atmosphere, because they knew enough to know that was silly. They'd all been working on this and doing thousands (!) of tests for months or years at that point. During the test he was given what he called the "chicken switch" that could abort the test at the last moment, and he always said that his biggest worry had been that he would stupidly abort the test in a moment of panic (surely this was exactly why he was given the switch). He described the actual explosion as the most beautiful thing he saw in his life.

When one looks at the history one needs to remember that these were scientists and engineers who behaved as such. My grandfather, for example, was the sort of person who always loved blowing things up. He'd nearly blown up the family home as a kid when given a chemistry set ... and he studied chemistry because he liked blowing things up ... and he wrote a PhD thesis about the shock waves generated by blowing up a really big (conventional) bomb. It all gets dressed up as studying shock waves and so forth, but it's really kids blowing things up. They get caught up in the challenge of it. The consequences, political, moral and otherwise, are not forefront in the thinking of most. None of them are innocent, but some have misgivings or second thoughts. Others are more cynical and ambitious and even sinister. There are Oppenheimers and there are Tellers.