notlefthanded

Hi Peter, I'm a Canadian working in the US on a TN. I have an H1B petition that was selected by lottery and processed for an out of country status change; I haven't activated it at this. Is it possible to change employers to a comparable role with just the accepted petition? Otherwise is it possible to change from a TN status to an H1B status -- despite the out of country filing -- without having to travel, given the current restrictions?

I can't help but think that if an IPO went like this, and the share price ballooned after colo'd bots scooped up the cheap shares, people would be up in arms about the company leaving money on the table. Just the people in this case are the artists, who traditionally get screwed anyways. And ticketmaster doesn't have the same incentive for accurate pricing. Also there's social stigma of money being the gatekeeper to fun/cultural things.

I'd say no. Blablacar is more of a market place matching empty seats and riders with a driver to a common(ish) destination. UberPool is more like a smart/dynamically routed minibus that constantly picks up and drops off passengers. What they have in common is that they try to minimize empty seats in cars.

What about Hollywood? And reputation via ivy league education? Also a legal landscape conducive to doing business?

That didn't work too well with blackberry in Argentina. It's kind of an extreme case, but there are parallels that can be drawn.

Wall street programmers are solving humanity's resource allocation problem ;)

https://www.bloomberg.com/view/articles/2016-08-24/are-index...

Interesting point, sfc (specific fuel consumption) is only really density altitude and humidity dependant, since it's only calculated on a per engine basis, but a fixed wing aeroplane's range can be greatly affected by the weight and balance of the plane, ie whether the elevators need to be adding upward or downward pressure to the tail section to maintain a cruise attitude

I think ppl are equating energy with force. Airspeed, altitude, and fuel are forms of energy, kinetic, potential, and chemical, respectively. Lift, drag, thrust, and weight are forces. We're talking about a heavier than air aircraft in cruise right now, and the contention is over whether all the energy added to the aircraft if used to counter drag.

Simple example: consider a helicopter in cruise. Fuel is burned to produce thrust. There is an insignificant component of that thrust vector pointed orthogonal to the vector of velocity. Since drag by definition acts along the same vector as velocity, not all the energy is being used to counteract drag.

Back to an aeroplane in straight and level, since that's a more interesting example. Let's assume that the direction of travel of the aircraft is normal to the plane of the propeller, so thrust is acting on the same plane as drag, in this idealized situation. Energy is added to the system in the form of thrust created by the prop. Said thrust is used to maintain the amount of kinetic energy of the aircraft. At the same time, this kinetic energy is being transformed into both lift and drag by the wings (and elevators, depending on how far aft the cog is) ergo not all the energy added to the system is used to counteract drag.

I think we're interpreting op differently. No, not all the energy added to a heavier than air aircraft (thrust) in straight-n-level flight* is used to counteract drag. Yes, where there is lift, there is induced drag. But the kinetic energy being added to maintain velocity is also being used for lift.

Imagine if the airfoil on an aeroplane were replaced with a symmetrical airfoil mounted with no angle of incidence. Thrust could be reduced because there's less drag from no lift. No lift, no induced drag, only parasitic drag, and the plane starts to lose altitude. Would you agree that not all the energy added to straight and level flight goes towards counteracting drag?

*where a' and v' are zero, and where for argument's sake, the thrust vector is perfectly horizontal

edit: by a' I mean change in vertical airspeed, by v' i mean change in true airspeed.

Short answer: that is not correct for heavier than air aircraft.

https://www.grc.nasa.gov/www/k-12/airplane/forces.html

Lift requires energy, usually kinetic, like the forward motion of an aeroplane being converted to lift (and drag) via the wings, or the blades of a helicopter pushing air down, or real hot and fast gases pointed downwards (think harrier jump jet).

A blimp, on the other hand, relies on buoyancy for lift, so yeah, in that case, given an altitude at which it's stable, to maintain velocity it only needs to add enough thrust to counteract the drag created by its forward movement.

I guess it comes down to whether being able to pick relationship terms à la carte outweighs the benefits of discounts via a bundle deal and having some influence via a seat at the table. There's a chance that, long term, this restructuring is worth the human-effort capital.

Maybe poor people don't work because there's a welfare cliff wherein people can work a lot more and still experience no gain in quality of life or economic situation.

I see it more as the value publication companies captured from entities advertising through them is now shifted to different advertising media such as facebook and google. The value the consumer derives from published content has stayed the same, or arguably declined in the case of printed news due to reduction in spending on content. Though the internet has lowered the barrier to disseminating content, eg blogging, which has put previously unpublished ideas out there.

"San Francisco isn’t in the same country as Lakeside anymore than New Orleans is in the same country as New York or Miami is in the same country as Minneapolis ... They may share certain cultural signifiers—money, a federal government, entertainment—it’s the same land, obviously—but the only things that give it the illusion of being one country are the greenback, The Tonight Show, and McDonald’s." American Gods - Neil Gaiman

Other side of the coin

Jet engines actually perform better at higher altitudes, bypass and propeller notwithstanding.

Actually it's easier to manage speed and spacing in congestion with a gently curving stretch of road - cars further up are visible so you can anticipate better and slow down earlier/more gradually, reducing jerk. This way too, you won't seem slow to the people behind you. It's not so much going super slow as it is being able to correctly guess the average speed of the road and acting as a damper. This is basically what the article describes btw.

I also like to try and impose a rule of not touching the brakes unless absolutely necessary, and using 20% throttle input at most, that helps with the whole dampening thing.

One last caveat: these techniques only really work for freeways/highways in the developed world. The tragedy of the commons phenomenon is on a whole nother level in places like India or China (se asia in general) or a lot of Latin America or even sixth avenue.

Seems weird to me that these are still called 'ride-sharing' services. Having used blablacar, which I would consider does true ride-sharing, uber and its ilk are more in the vein of ride-hiring.

I quite enjoy using Hong Kong and Tokyo's transit systems - subway, train, and esp. hk's minibuses - though as a visitor, i.e. not during rush hour.

The video is by Ray Dalio, founder of Bridgewater, and it states that it's just his personal mental framework to understanding the economy; not claiming gospel or anything. Either way, he's kind of a big deal.

Only in the context of being physically able to assist someone else. To name an extreme, I doubt he's saying that Stephen Hawking is 'worth less' than a given able bodied person.

I think in this case the charitable reading would be to not caveat it with ceteris paribus

Why is increasing numeracy "well-nigh impossible"?

Let's not forget languages that aren't ideally served by qwerty - I'm thinking asian languages in particular. Even therein, there's chinese, which has a high semantic density to syllable count, vs say japanese, which requires more syllables* to say the same thing.

*more keystrokes but same time spoken, as the natural speech cadence is faster. Can't remember source right now.

Some people only need / can afford to acquire said skills, and so aren't a good fit for the college track.

Stresses are pretty important in spanish. Take father/pope and potato; viva la paPA has a pretty different meaning from viva la PApa

"part of their order" is a very important part of that.

I think the generalization here is in individualistic vs collective, and a difference in style of communication.

This sums it up pretty well: http://bsix12.com/east-meets-west/