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Comment: Re:I have said it before (Score 1) 235

by epine (#49188871) Attached to: French Nuclear Industry In Turmoil As Manufacturer Buckles

When you begin counting the cost of nuclear, you've got to count ALL the costs. Including, as at Fukushima, basic engineering errors that ultimately cost astronomical amounts years after construction.

Do you know what the lead engineer of the GE design team for the original Fukushima reactor drove around town? A 1959 Edsel Ranger.

Certain mistakes were made back then in the heyday of mature industries like OS/360 and the Boeing 707 that we no longer make. Even the outlandish and highly inflated AI claims from the same era (which were held against the entire discipline for 50 years) are now almost becoming reality with deep learning. Times change. Even for AI. Even for nuclear.

Semi-retraction: Although I just made up that bit about the Edsel, I can't actually claim it's a false statement.

Comment: Re:I have said it before (Score 1) 235

by TheRaven64 (#49187757) Attached to: French Nuclear Industry In Turmoil As Manufacturer Buckles

Nuclear is expensive. http://www.lazard.com/PDF/Leve... Look at page 11.

Page 11 is talking about capital cost. The figure for nuclear is $7,591/kW, which is a lot more than some (although not the highest). But how does that work out over the lifetime of the plant? Assuming 100% uptime, that's 8,760kWh in the first year, so that's less than $0.90/kWh. If the plant is operating for 20 years, then that's around 4/kWh. Most nuclear plants are built with a 40-60 year expected lifespan, which makes the capital cost negligible over the lifetime of the plant.

The correct page to look at is Page 2, which gives the unsubsidised cost of electricity from all of the generating mechanisms. Nuclear is $124/MWh - that's lower than all of the other fuel sources in their 'conventional' bucket that have a little representative diamond listed (coal doesn't, and has a range that extends both above and below nuclear). Only Gas Combined Cycle is cheaper on average, and that's only when excluding most of the costs. Only utility-scale PV comes out cheaper overall, and you also need to add in storage costs if you want to use PV for a significant amount of grid supply.

Comment: Re:I have said it before (Score 1) 235

by TheRaven64 (#49187713) Attached to: French Nuclear Industry In Turmoil As Manufacturer Buckles

You're better off building a containment wall against flooding and keeping the reactor not too far above the water level.

That's fine too. The problem is building neither. The other problem is not fixing the design that was known to cause hydrogen build-up and explosions that breach containment in any problem scenario.

Comment: Re:Really? Come on now, you should know better. (Score 1) 276

by TheRaven64 (#49186783) Attached to: Would You Need a License To Drive a Self-Driving Car?
For every anecdote of a human taking over and saving the day, you can find a similar one of the human taking over and crashing. It mostly boils down to the amount of training that the pilot has had - and even the ones that end up crashing in situations where the automatic systems would probably have managed have had vastly more training than almost any driver on the road...

Comment: Re:If "yes," then it's not self-driving (Score 2) 276

by TheRaven64 (#49186769) Attached to: Would You Need a License To Drive a Self-Driving Car?
It's worth noting that there is one piece of automation in cars already that does give a different kind of driving license in a lot of places: automatic gear change. If you get a driving license in a car that has an automatic transmission then you can't drive manual cars with it, though the converse is allowed.

Comment: Re:I'm healthy... (Score 1) 127

by epine (#49186145) Attached to: Treadmill Performance Predicts Mortality

You're somewhat delusional if you believe this was pure fat loss. I regard it as a disservice to give people the impression that this kind of fat loss is either possible or healthy.

At the level of exercise required to sustain a caloric balance of -2700 calories per day over four months, the body would become severely protein challenged. Even converting fat to energy increases protein demand, as those organelles burn hard and wear out.

What happens with formerly fit individuals who then become obese is that these individuals actually have extremely large reserves of skeletal muscle (obese people tend to have extremely strong legs for practical reasons, it just doesn't seem like it as hefting their own body weight consumes most of their strength). As this kind of person goes into an endurance exercise program, he or she actually needs far less muscle mass than they have starting out.

If his story is true, I bet he lost a great deal of skeletal muscle mass in addition to a lot of fat. The muscle that remained would be extremely fit and efficient, but less strong.

A similarly obese person without the muscular reserve would be flirting with death in attempting to replicate these figures. If his story is even true. And if it is true, why did he quit and put all those pounds back on again? Could it be that his body figured out that the stress of the program was unreasonable to begin with?

Did he actually measure his body composition before and after, or did he just take a weight difference and presume that anyone who exercises that much couldn't possibly have shed any muscle mass?

I don't feel like digging up particulars I last read five years ago, but I distinctly do not recall having ever read anything credible which suggests this level of weight loss can be achieved on a pure fat-burning basis.

Comment: Fuck you, you hater! (Score 1) 61

by denzacar (#49182181) Attached to: Lost City Discovered In Honduran Rain Forest

That's not a pyramid, it's just a vegetation encrusted natural phenomenon like the "pyramids" in Bosnia.

There's a pyramid under there and Semir Osmanagic will dig it up and prove everyone that it was built by Pleiadians!
Then, entire world will know the Faber College Theme - i.e. our national anthem.

Comment: Re:I'm healthy... (Score 1) 127

by denzacar (#49181917) Attached to: Treadmill Performance Predicts Mortality

daily caloric deficit of over 2700 calories, which is beyond a starvation diet. If your RMR was 2000 calories per day

36 year old, 170 cm, 111 kg, male individual has an RMR of about 2000 calories per day.
Running "about 30 miles a week, swimming for about one hour and a half twice a week and doing all sort of exercise" raises his daily calorie needs to about 3800 calories per day.
If he's also working a physical job, that's about 4200 calories per day.

That's a daily difference of 1800-2200 calories from exercise alone.
Diet-vise he could drop bread for one meal, or skip breakfast.
And that's without knowing how many calories he was taking in "after military service".

Army was feeding him AT LEAST 3250 calories per day, possibly up to 6000-7000 calories per day if he was stationed in a high altitude location in Afghanistan.
And that's not counting snacks. Or fighting stress with food.

He probably came home and continued eating 5000+ calories per day.
There's plenty room there to drop all that weight with exercise and moderate calorie restriction.
Particularly for someone used to military standards of exercise.

Comment: Re:Refactoring done right happens as you go (Score 1) 242

by TheRaven64 (#49179067) Attached to: Study: Refactoring Doesn't Improve Code Quality

Newton looked at the spectrum and saw that it contained six distinct colours to the human eye: red, orange, yellow, green, blue, purple. But his alchemist beliefs considered 7 to be a magic number and so wanted the spectrum to have seven colours. He decided that purple should be split into indigo and violet to reflect this, but didn't split any of the others (even where the difference is at least as pronounced) because it contradicted his mystical thinking.

If even Newton 'One of the smartest men to ever live' couldn't manage to keep his science separate from his mysticism, what hope do you think other religious people have?

Comment: Re:Uh, what? (Score 1) 86

by TheRaven64 (#49179029) Attached to: Khronos Group Announces Vulkan To Compete Against DirectX 12

This is a confusion in terms. Personally I blame Sun. An interpreter IS a form of compiler, it is the term used to refer compilation at run time

No, sorry. A compiler is, in theoretical terms, a partial application of an interpreter to a program. In practical terms, a compiler transforms the input into some other form, which is then executed, whereas an interpreter executes the input directly. JIT compilation is still compilation. A just-in-time compiler is the term given to compilers that produce their output just before it is executed, as opposed to ahead-of-time (AoT) compilers, which produce it all up front, even if some paths are never executed.

There's some complication, because most environments that do JIT compilation also include interpreters that gather profiling information to incorporate into the JIT compiled code and to improve startup times. JavaScript implementations, in particular, often spend a reasonable amount of time in the interpreter because most web pages contain a load of JavaScript that's only run one or two times and the time taken to compile it is more than the time saved to execute it. Some have multiple compilers - JavaScriptCore from the WebKit project has an interpreter and three different JIT compilers that have different points in the space between compilation time and execution time - they'll recompile hot paths multiple times as they're executed more, with more optimisation each time. The key difference between the interpreter and compilers here is that the compilers are each invoked once on a segment of code and it's then executed without involving the compiler. The interpreter is involved every time the bytecode is run. It reads a bytecode and then jumps to the segment of interpreter code that executes it and then returns. The compiler takes a sequence of bytecodes, generates a fragment of native code to execute them, and then this fragment is combined with other fragments to produce a running program.

The shader compilers in drivers, however, are not JIT compilers. They are AoT compilers that are invoked at load time - often at install time. They don't compile the code just before it's run, they typically compile it once and cache the result for multiple invocations of the program. Some drivers (Windows and Android come to mind) have a mechanism that allows you to do the compilation at install time. Unlike most JIT environments, graphics drivers don't tend to use run-time profiling for optimisation, the bytecode exists solely for the purpose of providing an ISA-neutral distribution format.

Comment: Re:File extensions? (Score 1) 555

by TheRaven64 (#49178979) Attached to: Why We Should Stop Hiding File-Name Extensions

Ugh, trust MS to fuck up a reasonable UI choice. On OS X, by default, it only happens for programs and requires you to close the dialog and then bring up the context menu for the program while holding a modifier key. You don't know how to do it unless you've actually read all of the way to the end of the dialog, so it generally protects people.

There are some interesting corner cases though, such as shell scripts. The file manager doesn't know if the thing that you tell it to open a shell script with is a text editor or a script interpreter, so may warn spuriously.

Comment: Sure... (Score 0) 431

This guy is the best dad this girl could have right now.

Sure he is.
Until someone sues them.
Or pulls the same thing on them on account of him painting that huge target on their backs.
Except now they can just wave any civil suit away on account of that he was just doing what her dad did.
Or it is simply seen as a Streisand effect taunt to any idiot out there. How many trolls CAN he handle?
And it is always smart to react to verbal insults in a way that will leave someone with a lot of free time on their hands, no prospects for the future AND angry.

But hey... It may be a hassle to remember that now the saying goes "Sticks and stones may break my bones, but words may get me fired/expelled." - but it's nice to see sayings change during your lifetime.
It means we are living in interesting times.

What this country needs is a dime that will buy a good five-cent bagel.

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