lappa

18 ms·

61.
by lappa 10y ago
"To qualify as HEPA by US government standards, an air filter must remove (from the air that passes through) 99.97% of particles that have a size of 0.3 µm." Carbon monoxide is a few orders of magnitude too small to be caught by a
62.
by lappa 10y ago
This really doesn't make any sense. >blockchains introduced three new characteristics: centralized / shared control, immutable / audit trails, and native assets / exchanges. Blockchains aren't immutable, they are
63.
by lappa 10y ago
Did you feel you had less energy, even in the beginning of this diet?
64.
by lappa 10y ago
Energy Source Subsidy per kwh Externalities per kwh Coal $0.0006 ~$0.02 Natural Gas $0.0006 ~$0.01 Nuclear $0.0031 (unspecified) Renewables $0.0154 (unspecified) Biomass P
65.
by lappa 10y ago
The explanation completely went over your head. The numbers weren't from measurements of actual firm performance, they were demonstrative examples to explain why measuring the median isn't very useful in this case. And no, my exam
66.
by lappa 10y ago
I have more money than every person in the US who has $0 to their name combined. This metric isn't useful for anything other than shocking headlines.
67.
by lappa 10y ago
>PoS is resistant to nothing at stake attack as long as at least one smallest stake is indefinitely honest in each block. You completely misunderstand the security model if you think one honest stakeholder can prevent these attacks. Ther
68.
by lappa 10y ago
Yes, as I mentioned users who don't have to sync back up have their vulnerabilities limited to stake grinding attacks.
69.
by lappa 10y ago
They don't, however, need trust to determine which chain has had the most work done on it. An alternative genesis with much less work done on it is suspect immediately.
70.
by lappa 10y ago
I don't know why this paper needs to introduce so much already common terminology. "Corrupt" is a re-org "stable transactions" are confirmed transactions "Function maxvalid(C, C). Returns the longest chain from
71.
by lappa 10y ago
If you have 5 firms with ROIs of -10%, -5%, -3%, 1%, 14% and 31%, then 50% of the firms have negative growth rates and the median firm loses money. However you can observe that if you invested $100 ($600 total) into each firm, you would end
72.
by lappa 10y ago
Due to the intelligence difference it doesn't seem reasonable to even equate one human year to one rat year. There are no ethical complaints with trashing an artificial neural network. It could be argued that it is ethical to kill a bi
73.
by lappa 10y ago
The article said they would be targeting Russia.
74.
by lappa 10y ago
We wouldn't be able to mate with Nakalipithecus nakayamai, so they are indeed a distinct species despite being our ancestor.
75.
by lappa 10y ago
Not the person you're responding to, but aren't there service plans with unlimited texting and images? I'd definitely use this service if I could text.
76.
by lappa 10y ago
Being a very good blackjack player doesn't mean much. You can follow a relatively simple set of instructions to maximize expected value.
77.
by lappa 11y ago
This still exposes you to fake confirmation attacks. Any miner can give you a block that follows this clients rules and as long as most miners aren't following these rules, he can guarantee the block will be overwritten (reorged out).
78.
by lappa 11y ago
51% is guarantees that over infinite time consensus will be achieved. 75% is just a stronger guarantee that it will with higher probability come to consensus in a shorter time.
79.
by lappa 11y ago
Do you know of a good resource listing all of these?
80.
by lappa 11y ago
In the first paragraph, this is cited: https://download.wpsoftware.net/bitcoin/pos.pdf It is a good, generalized overview of the faults in proof-of-stake consensus systems.
81.
by lappa 11y ago
I wasn't aware, thanks for the info!
82.
by lappa 11y ago
A bit more than 50 >The risk projections suggest that by now Chernobyl may have caused about 1000 cases of thyroid cancer and 4000 cases of other cancers in Europe, representing about 0.01% of all incident cancers since the accident. Mod
83.
by lappa 11y ago
>In 2013, an easy way to add data to any Bitcoin transaction was introduced. By making standard a previously invalid script instruction, OP_RETURN, a Bitcoin user could add up to 40 bytes of data to his transactions. It was already plent
84.
by lappa 11y ago
Among the things I had knowledge of, a lot seemed incorrect, so I wasn't quite sure how to take the things I didn't have knowledge of.
85.
by lappa 11y ago
This is a bit confusing. I don't suspect Netflix is built using primarily node.js, and I don't see how the Netflix Prize (algorithm for predicting what a person is most likely to want to watch) falls under "scaling".
86.
by lappa 11y ago
Do they have any third party customer reviews? Their video claims 80% success on the first try, but since it isn't sold on eBay or Amazon I can't find any trustworthy reviews.
87.
by lappa 11y ago
Just to be clear, the article is saying that using solar power technology from 2030 would be more cost effective 90% of the time, not that using 90% solar energy today would be cheaper by the time we reach 2030.
88.
by lappa 11y ago
Ah, I didn't realize that these were updated, I thought it just used a regex to verify the email, phone number, filter bad words, etc. A lot of these seem useful and having APIs that need to be updated is a good VP, however for things
89.
by lappa 11y ago
What is the benefit of using this when a local, unlimited-use library without latency issues can be used?
90.
by lappa 11y ago
Don't you think there's a bit of a selection bias there?

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