41 karma · joined February 23, 2013
but it can and will leak into real world as if somebody borrowed cash with saas shares as collateral. now lenders are in deep shit. somebody is missing a lot of money on their balance sheets.
it will and it does. anybody who owns a smart watch with heart rate monitor can observe it. the proverbial glass is very visible as a spike of resting heart rate and especially horrible on HRV.
besides, there are "glasses" which can take full 750ml bottle. may be most people don't go such extreme but still very good to fool themselves about alcohol volume consumption
ps: speaking of taking 3-6-12 months off advises. Irrelevant of your situation, I think we are living through interesting part of the "hockey stick" curve when being out for one year could mean end of the tech career. Things move way too fast, and gaining velocity.
let me rephrase a bit. It is all about shareholders and how to make more money for them. Every single quarter. and if the CEO is not aligned with these values she will be replaced by new one. Not all CEOs are greedy bastards but the whole system is designed to eliminate every single person who cares about something else except short term returns for the shareholders. So good CEOs are out and bad CEOs are in. Survival of the fittest as it is.
When on Windows, Far becomes tool to go if you are developer. Powerful file browser with shell and quick viewer and editor, also with ability to create shortcuts to dirs and commands. All together it creates this mouse-free flow which many devs like.
to my best understanding, to go from high entropy state to low entropy state you need work to do. The sun is a source of energy to do the work
Nope. The work comes from the system coming from ordered state into unordered. Why the problem above is good for intuition because you can work out how to reverse the state. You invent semi-magical barrier which is fully transparent for particles A and reflects particles B, then you start to push such barrier from left to right up to the middle, compressing gas B (and making work!) and leave left part with gas A only, then repeat similar exercise on the right side.
>Given the scenario you just laid out it seems no work can be extracted just by letting mix two substances that are at the same temperature and pressure. But there is something about it that doesn't quite add up to my intuition of symmetry and conservation laws. Could you please elaborate more on that?
As far as I understand this asymmetry was the exact reason why entropy was introduced. Then later explained by Boltzmann via a measure of number of microscopic states.
Naturally second law of thermodynamics forbids perpetual engines.
You are given insulated cylinder with a barrier in the middle. Left side of the cylinder filled with ideal gas A, and the right side filled with gas B. If given a particle one can distinguish A from B. The pressure and temperature on both sides are the same. Then you remove the barrier and gases mix. Question: how much work you need to do to revert the system into the original state? Hint: the work is equal to entropy difference between two states.
More generally, if you have proper insulated system and leave it be for a while. All of sudden you will have to do some work to come back to the original state despite energy conservation law holds.
We were warned
Investment banks usually trade in volatility space, also called delta hedged. Main idea they would sell options (calls or puts) by adding extra premium to the fair price. At the same time they make the whole portfolio delta neutral by buying and selling underlying instruments on daily basis. By having significant portfolio one could expect to leak less on the hedging process and may be use some correlation between underlyings and use index futures instead of individual stocks. The whole business is to capture the premium mentioned above without predicting up or down move.
https://en.wikipedia.org/wiki/Decimation_(punishment)
Romans knew what they are doing!
Even if you ignore the whole story about graduation I wonder why this considered ok? According to pov of this guy people should work their normal hours and plus a "little bit" more only because the management decided to save some money not hiring extra personal to provide the coverage.
ps: basic python and prob theory won't hurt.
And for people outside of big cities there were schools-by-correspondence famously running by Moscow State University for math and MIPT for math/physics. The setup was you were mailed a small booklet every month. You had to study the material, solve problems and sent solutions back. The solutions were graded and sent back to you. It was great on so many levels. First and the most important aspect it taught discipline and time management. The material was amazing when you were given gradual increase in complexity instead of sheer volume of simple problems or a few olympiad-level problems which can't be solved if you are not there yet.
Notable example would be Lev Landau's Theoretical Physics. If you see "obviously" there it is probably not obvious at all and can take good few hours to derive the formula.
ps: for Russian speaking crowd: there is a YA book https://en.wikipedia.org/wiki/The_Land_of_Foam which is a fiction version of would-be such a trip.