dlubarov

61 ms·

811.
by dlubarov 9y ago
Just to make sure it's clear, I'm not saying that courts should have any special power to manipulate the blockchain, just that they could declare a stolen title invalid, and issue a new one in the form of a new colored coin on the
812.
by dlubarov 9y ago
51% is necessary to create viable forks with arbitrary lengths. What that mining pool did was much less harmful: they just censored other parties' transactions during an ICO. Unless a coordinated majority is censoring your transactions
813.
by dlubarov 9y ago
Physical deeds are forged all the time, and sorting it out requires a quiet title lawsuit. A stolen electronic deed would be handled similarly. You would ask a court to declare the stolen title invalid and issue a new one.
814.
by dlubarov 9y ago
It's possible that they acquired a majority of hash power when doing so was cheaper, but in order to maintain their majority, they would have had to invest several billion since then. See [1] which shows the growth of the overall netwo
815.
by dlubarov 9y ago
Even if they acquired a 51% stake on the cheap, they would still own $4b worth of NEO today. Revealing that they hold a majority stake would destroy NEO's price, since it breaks the security model, resulting in a $4b loss.
816.
by dlubarov 9y ago
I've been working on a blockchain design involving PoS, and it's certainly more difficult to get right, but it's a solvable problem. 51% attacks normally require 51% stake. It's true that large stakeholders will occasion
817.
by dlubarov 9y ago
I skimmed the immutability article. The argument is essentially that a country like China could wreak havoc on Bitcoin by acquiring 51% of mining power. His calculation is a bit outdated -- current mining revenue is over 7 billion [1] witho
818.
by dlubarov 9y ago
It's not really "needing", but one of the strong use cases is disrupting escrow. If domains, car/house titles, etc. existed as blockchain objects then they could be sold securely with no escrow.
819.
by dlubarov 9y ago
You can use an international stock index fund like VT. That will include some real estate companies like EQR, but if you want extra real estate exposure, there are index funds like VNQ for that. Or if you want bonds, there are index funds l
820.
by dlubarov 9y ago
A perfectly efficient market can still have investment opportunities with nonzero expected gains, as long as there's a shortage of capital.
821.
by dlubarov 9y ago
Being decentralized doesn't mean that Bitcoin can't evolve, though. The process is just - Someone proposes a change to the rules, effective as of some future block number - Each miner decides whether to adopt the proposed rules -
822.
by dlubarov 9y ago
Bitcoin is still using (and probably will always use) SHA-256 as the proof of work problem, which ASICs are great for since it takes negligible memory.
823.
by dlubarov 9y ago
Yes; you can see the location history Google has been collecting at https://www.google.com/maps/timeline But it's easy to stop collecting and/or delete location data; see https://support.google.com
824.
by dlubarov 9y ago
How about this rotation mechanism -- - Use the block index as the random seed. (Yes, the resulting random sequence is predictable, but that's okay...) - Randomly select N UTXOs weighted by their output sizes. (This could be done effici
825.
by dlubarov 9y ago
> 1) Randomness (or entropy) in a p2p system is bounded by the data present in the chain. What this means is that (at the very least) an attacker can know ahead of time whether he will win the block reward, because he has all data necess
826.
by dlubarov 9y ago
30s isn't really typical; the average is in the ballpark of 10s. When I worked at Square we got our average down to 4.2s [1]. Modern Verifone terminals seem pretty quick as well. Long term, "instant" contactless will probably
827.
by dlubarov 9y ago
AliExpress is consumer focused; you can buy single units there.
828.
by dlubarov 9y ago
Wouldn't it be easier to reverse engineer their app? It seems easy enough, at least one the Android side. You could use something like baksmali to convert all the dex code to smali, then grep that for calls to AudioRecord/MediaRec
829.
by dlubarov 9y ago
That's tangential though. Whether or not you have skipped frames, G-Sync/FreeSync tend to reduce input lag, because the panel's refresh events will be timed such that they're closer, on average, to the times when new fra
830.
by dlubarov 9y ago
I don't really see a difference. Android's API changes are almost always backwards compatible. There are a few exceptions, like AudioManager.setRouting (now a no-op), but they're very rare. For the most part, apps built for f
831.
by dlubarov 9y ago
I do! I uploaded it here: https://docs.google.com/document/d/1b9lWFHuUf4FfCRZ51mAOSuzz...
832.
by dlubarov 9y ago
If anyone unfamiliar is interested to see what LD critiques look like, here are a few of my old cases: AC normativity K: https://docs.google.com/document/d/1RTv2KtA_XBhkRQeHmC69BfTi... NC analytic philosophy K: h
833.
by dlubarov 9y ago
Sorry, my information was out of date since I switched projects a while ago. Supporting all M+ phones was the original plan, but after observing some severe bluetooth audio bugs on certain phones, the team decided to support Pixel only for
834.
by dlubarov 9y ago
Google engineer here. Did you see the demo? https://www.youtube.com/watch?v=qc28VzAFBHw Yes, the Google Translate app has a conversation mode which doesn't require a headset at all. I wouldn't recommend trying to
835.
by dlubarov 9y ago
If I'm understanding you correctly, it's already supported. The Google Translate app has a "conversation mode" where two people can take turns speaking into the phone - https://support.google.com/transla
836.
by dlubarov 9y ago
I worked on this feature and commented on why we didn't support other headsets here: https://news.ycombinator.com/item?id=15404918
837.
by dlubarov 9y ago
We did explore using standard protocols in order to support third party headsets. The most natural solution would be to listen for AT+BVRA (voice recognition command), which most headsets generate after some button is held down for a couple
838.
by dlubarov 9y ago
> you would also be able to make sense of written text, which this product alone does not cover Google Translate does have a feature where you can take a photo, OCR the text and translate it - https://support.google.com/t
839.
by dlubarov 9y ago
I worked on this feature and just want to clarify that it isn't Pixel exclusive; it works on any Android phone running M or newer. It is exclusive to the Pixel Buds, though.
840.
by dlubarov 9y ago
They could have put the fingerprint sensor on the back, as several Android phones do.

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