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andylei

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i'll answer your argument with the initial paragraph you quoted:

A compiler for C/C++/Rust could turn that kind of expression into three operations: load the value of x, multiply it by two, and then store the result. In Python, however, there is a long list of operations that have to be performed, starting with finding the type of p, calling its __getattribute__() method, through unboxing p.x and 2, to finally boxing the result, which requires memory allocation. None of that is dependent on whether Python is interpreted or not, those steps are required based on the language semantics.

The previous paragraph is

Another "myth" is that Python is slow because it is interpreted; again, there is some truth to that, but interpretation is only a small part of what makes Python slow.

He concedes its slow, he's just saying it's not related to how interpreted it is.

No, that's a quote from someone they interviewed who hasn't read the full paper (the full paper is not yet available). They are saying that the details of the study will determine how significant the results are.

So correlation is likely just a data artifact of poor data analysis and nothing to do with intermittent fasting?

You have no idea whether the data analysis is good or not; the only thing that was released is the abstract.

Oh, 2022 5 years ago

nobody in the 20th century imagined that within just two decades we'd be able to sequence the genome of a new pathogen within days, much less hours, or design a new vaccine within two weeks and have it in human clinical trials a month later

the article is about how it's a bad thing:

There’s just one problem: If it weren’t for Bitcoin, there would almost certainly be no reason to run the power plant in Dresden at all. Without the revenue from mining, Greenidge would have no reason to spew hundreds of thousands of tons of carbon dioxide from the plant’s stacks, discharge hundreds of billions of gallons of hot water into a nearby trout stream, or pipe in and burn billions of cubic feet of fracked natural gas.

Apache Arrow 4.0 5 years ago

"column" here refers to a type of data. let's say you have a bunch of records of purchases. one column would be price, another column would be quantity.

if you're doing a linear algebra like transformation, you want to do it on all the prices or all the quantities, and a linear algebra library expects a big array of numbers, which is why you have to transform your records into an array of prices and an array of quantities.

"column" here refers to properties of objects, and not rows vs columns with in an array of number

Humidity affects the dessication of droplets, which in turn shifts what fraction become airborne (as aerosols) or settle out (as droplets). In the tiny enclosed volume between your face and your mask, that difference doesn't matter, because the whole volume is exchanged multiple times with each breath.

The article doesn't say anything about droplets or the number of viral particles you get exposed to. From the article:

hydration of the respiratory tract is known to benefit the immune system.

You can drive the price down simply by inflating the supply

short selling does not increase the number of shares. if i borrow a share from you and sell it, you cannot also sell that share. the number of shares is constant regardless of how many shares are sold short (except for naked short selling).

short selling increases the number of people that can sell, but that only increases symmetry in an otherwise asymmetrical system. anyone can bet that the price goes up, but without short selling, only people that already bought can bet that the price will go down.

there's always going to be a perverse incentive to target any company so long as you can manipulate the supply enough to force a price drop

what is "manipulative" about selling a stock? if i buy a bunch of stock (to make the price go up), is that also "manipulation"?

it's absolutely a conspiracy

I think a "conspiracy" requires some sort of actual coordination. A bunch of actors doing the same thing for the same underlying reason isn't a conspiracy. Lots of people going to sleep when it gets dark isn't a conspiracy.

I'm not a domain expert, but it would seem that whether or not something was sold naked is ultimately determined in the instant that you are obligated to deliver

No, this is not true. When you sell short (with some exceptions for market makers), you are obligated to "find" shares to borrow (called "locates"). Usually your broker arranges this; any shares that you borrow cannot be lent to someone else. If you do not have any borrowed shares (as recorded by the broker), that is considered a "naked short sell".

You can get more the 100% without naked shorts, sure, but is that legal?, does SEC allow that?

Yes. As someone lending out a share (for someone else to short), you can't know whether the person you bought it from had borrowed it to sell it to you.

Let's say you bought a share of stock. Can you lend it to someone for them to short sell? Of course. You own the share, regardless of how many people it passed through to get to you.

Your STEM example explains very little of this gender gap. The article says:

1. this gender gap begins very early (kindergarden), before the majority of "women in STEM" programs begin

2. are international (i'm fairly certain they don't have women in STEM programs in China, for example)

3. it doesn't explain why the differences are inversely related to income level (do you think there are more "women in STEM" programs at lower income levels?)

4. this difference is very old (>50 years of this effect)