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Comment Re: Why not? (Score 2) 362

What gives you the very incorrect idea that the 'old' clode is single-threaded? IBM mainframes have supported multi-processing since 1965. Current models have up to 120 CPs in one image. And as for performance - there you are WAY out in left field. Many COBOL programs involve decimal operations, and in COBOL that translates to HARDWARE decimal operations. If you think you are going to get anywhere NEAR that performace with Python (snort), I'll have what you're smoking.

Comment Re:COBOL is still quite valid for use... (Score 1) 362

Well yeah, it is the job of an optimizing compiler to produce the most efficient code for a particular architecture. Of course, the compiler can only do that if the language supports a particular type of data. If the language doesn't support a particular datatype, then you can't do anything at all with that type of data. Which is why the gmplib has all the important stuff written in assembler (not C) - because C does not support decimal operations.

The question is not whether or not you can do a certain operation in a given language. You can do damn near anything in any language. The question is can you do it efficiently. The 'C' implementation is probably the least inefficient, but it is still worse than native support. The Java and Python implementations are ridiculous wasters of cycles.

Also 'INTELS' decimal128???? Seriously?

Comment Re:Abolish NASA, and deregulate aerospace. (Score 1) 156

not quite the average toddler's level of understanding.

Project much?

Spoken like one with no clue at all of NASA's decades of hostility to private enterprise in space. Google for "OTRAG" for one example of a potential competitor that they pulled out all the stops to kill off.

-jcr

Comment Re:COBOL is still quite valid for use... (Score 1) 362

Huh? You can do binary integer and floating point arithmetic in any of those languages without any libraries, classes, or modules. You can only do decimal operations in those languages by either converting the decimal numbers to binary, operating on them, and converting back or by calling something written in a different language. Hiding those things elsewhere does not magically mean that the language supports decimal.

Comment Re:COBOL is still quite valid for use... (Score 1) 362

If Java, Python, and C support decimal operations, then why are a class, a module, or a library required? COBOL, on the other hand, directly supports decimal numbers. Two fixed point numbers can be read in, then operated on directly, then written out with no conversions. And the operations (add, subtract, multiply, divide, format, etc) are done with a single machine instruction (on a mainframe).

Comment Carrier comparison (Score 2) 208

Many who comment here will have a reason that they chose one carrier over one other carrier. They may have switched carriers. I always found that the latest carrier plan was better than the competition, and that it would go back and forth or be too confusing to come up with one clear answer. I actually have iPhones and aPhones on 5 carriers. I also travel the world quite a bit. Domestically, all the carriers are good for most unless you live in an area not covered by some. I remember times when Verizon was faster but now it seems that AT&T is faster for me, most of the time. I remember when you could buy international data from Verizon that covered 200 countries, while the AT&T list was only about 50 countries. That affected me in places like Russia and South Africa, back then. T-Mobile has incredible data plans for here and away but they don't seem as fast as claimed unless I'm in the store. Sprint has gone far out of their way to help me with issues, including a stolen phone number. Right now I believe that the best carrier I have, for my own needs, is Google Project Fi because the plan works in over 100 countries. You can even order a free data-only SIM for free, without even a shipping charge, to use it on iPads and the like. I would never say that anyone's choice of plan is bad in any way though.

Comment Re:Money stores value (Score 1) 148

The American Revolution is proof that you are wrong, as they won the war using only paper money.

Might want to brush up on your history a bit. They won despite the paper money, which was a major hindrance. Google for the phrase "not worth a continental". When the constitution was written, the memory of America's first hyperinflation was very fresh in their minds, which is why the gold and silver clause in the constitution forbids fiat currency.

-jcr

Comment Re:Knowledgable (Score 1) 102

For someone who says others are unable to follow a conversation, you certainly show yourself to be unable to do so.

You are talking about stability during a discharge cycle. Of course that is important, and nobody is saying anything that even remotely contradicts that. This is the 'stable voltage range' he is refering to.

But he was aked about the FAILURE mode of the batteries. And in answer to that he said there is a narrow WINDOW which will produce that stable voltage range. The WINDOW is refering to the CHARGE voltages that are required in order for the battery to produce that stable range on discharge. There is only a narrow window of charge voltages which will produce the desired output.

By reading ALL of his answers, you can see that the problem is that, on every cycle, more of a film builds up on the anode. This film interferes with the charging process (ie. less voltage is reaching the electrolyte). As long as the voltage is still in that window, stable output results. After a certain number of cycles there is enough film that the voltage reaching the electrolyte is OUTSIDE that window, and now the battery can no longer produce that stable voltage. The cell has FAILED.

And the solution he provides to the problem is to prevent the build-up of film by plating the anode, which can't be done with the liquid electrolytes. He is in no way saying the problem is the stable voltage range, he is saying that in order to keep the DESIRABLE stable voltage range, you must stay in the window by preventing the film on the anode.

Comment Re:Relevant XKCD (Score 1) 102

Telsa's pre-sales run to about 400K cars. 17.55 million new cars were sold in the US in 2016. So, if all of those pre-sales turn into actual sales, that is about 2% of car sales. Once. Is there any indication that they would sell ANOTHER 400K cars the next year, or will everyone who wants one already have one? That remains to be seen.

You have provided zero evidence that 'manufacturers are adopting EVs at a much faster pace...'. Have they announced the conversion of factories to EVs away from ICEs? Have they announced new factories that are capable of building more than 2% of their cars by 2020 (only THREE years away)?

Comment Re:Knowledgable (Score 1) 102

He did not say anything about a stable output voltage. He said the electrolytes have a small window for a stable voltage range. The most likely means that if you charge the electrolyte to (for instance) 3.4 volts it will be stable, but you can't charge it to more than 3.5 volts or less than 3.3 volts. That is a small stable voltage range REGARDLESS of how well it holds that charge or delivers that voltage on discharge. And that is important, because as the internal resistance increases (due to anode decay), the voltage reaching the electrolyte decreases. Once the voltage reaching the electrolyte falls below 3.3 volts the battery does not store it. Which is exactly what we see with lithium batteries.

Comment Re:Relevant XKCD (Score 2) 102

What he is doing is cherry-picking. Yes, there have been cases where 'experts' drastically underestimated the impact something would have. However, there are just as many cases where they over-estimated the impact something would have. SSTs were going to drastically change air travel, except they didn't. Segways were going to change urban transport forever, except they didn't. The difference between over- and under-estimation is that the things that were under-estimated are around to remind us of the error, while the things that were over-estimated aren't.

Cars were immediately seen as better than horses by most people. They pretty much sold themselves. Manufacturers didn't have to convince people to buy A car, they had the convince people to buy THEIR car. Same with cell phones.

Does the average driver immediately see EVs as superior to ICE? About the only reason they would is price of fuel. Environmental concerns are important, but almost always take a back seat to economics at the individual level.

Yes, auto-makers may be projecting 1~2% sales by 2020, but the vast majority of them are rushing to bring EV's to market in the next few years. Their actions speak louder than their words.

This statement really doesn't make sense. 2020 IS 'the next few years'. Having 1-2% of your cars be EVs is better than having 0% of your cars be EVs and losing those customers to a competitor which is what will happen if they don't rush to bring out EVs. Their actions are in no way 'speaking louder than their words'.

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