Hacker News: olegkikin

New comment by olegkikin in "Eldar Black Holes"

olegkikin — Sat, 24 Feb 2018 18:14:31 +0000

> The crew of a 99.9% lightspeed ship doesn’t experience time dilation until they return home.

That's not true. They see the universe around them moving much faster.

Time dilation has nothing to do with "returning home".

New comment by olegkikin in "Eldar Black Holes"

olegkikin — Sat, 24 Feb 2018 17:52:05 +0000

But from our perspective, the outside observers, why do black holes gain mass? It would take an infinite amount of time from our perspective for any mass to even touch the event horizon.

New comment by olegkikin in "Tesla deployed over 300 Powerwalls in Hawaiian schools to cool down classrooms"

olegkikin — Sat, 24 Feb 2018 15:41:25 +0000

Your numbers are outdated. Thin film = 23%, multi-junction are 46%.

"Standard PV" is probably what's available in bulk and cheap, is around 22-25%.

https://upload.wikimedia.org/wikipedia/commons/0/01/PVeff%28...

New comment by olegkikin in "Eldar Black Holes"

olegkikin — Sat, 24 Feb 2018 15:34:28 +0000

That's the thing that never made sense to me about the black holes. The closer you are to the event horizon, the faster the time passes for the universe around you. So reaching the event horizon should take infinite amount of the "outside time", so right before you reach the horizon, you should see the whole future of the universe, including its end, if there's any.

So how do black holes gain any mass then?

New comment by olegkikin in "Chrome will stop displaying ads that are repeatedly flagged as disruptive"

olegkikin — Tue, 13 Feb 2018 15:05:23 +0000

I feel like they will get sued for that extremely quickly, considering their dominating position (Chrome) and being in the ad-serving business at the same time.

https://upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Br...

New comment by olegkikin in "Waze Carpool"

olegkikin — Thu, 25 Jan 2018 23:13:10 +0000

Why would any reasonable company decide to warn people of red light cameras? People who go through red lights are freaking dangerous.

New comment by olegkikin in "ActivityPub: decentralized social networking protocol"

olegkikin — Wed, 24 Jan 2018 15:43:05 +0000

> I don't know if there's an easy way to share keys in a decentralized way

Blockchain. Namecoin, in particular.

New comment by olegkikin in "Trial of a blood test that detects eight common forms of cancer"

olegkikin — Fri, 19 Jan 2018 21:27:52 +0000

It's still extremely useful, even with those false positive rates. You will scare a few people, but they will just retest and maybe will improve their lifestyle.

New comment by olegkikin in "The Tether Conundrum: a look into a suspicious cryptocurrency"

olegkikin — Fri, 19 Jan 2018 20:57:07 +0000

Maybe even more, if they invested ALL the dollars into bitcoin since their inception. That would be smart of them in hindsight. If that's the case, they could be sitting on $5B+ worth of BTC (or maybe a basket of cryptocurrencies).

New comment by olegkikin in "AI in drug discovery is overhyped: examples from AstraZeneca, Harvard, Stanford"

olegkikin — Fri, 05 Jan 2018 21:22:01 +0000

Just start an ICO, there are not that many medical ones. You already have all the right buzz words to raise a few billion ;)

New comment by olegkikin in "XPS 13 developer edition 7th generation available"

olegkikin — Thu, 04 Jan 2018 20:43:02 +0000

I looked at the i7/16GB/512GB/UHD version, it's over $2K.

Why not get a Surface Book instead for $1600?

https://www.amazon.com/dp/B0163GNS5S/

Or Gigabyte Aero?

https://www.amazon.com/dp/B01MY2YYKB/

New comment by olegkikin in "DeepJ: Style-Specific Music Generation"

olegkikin — Thu, 04 Jan 2018 13:23:31 +0000

And 100% of glitch music.

New comment by olegkikin in "Observable Universe contains 10x more galaxies than previously thought (2016)"

olegkikin — Thu, 04 Jan 2018 13:16:24 +0000

Vlad the Astrophysicist

https://www.youtube.com/watch?v=o9kbcGfX35M

New comment by olegkikin in "Observable Universe contains 10x more galaxies than previously thought (2016)"

olegkikin — Thu, 04 Jan 2018 13:13:40 +0000

There's a huge difference between what evolved organisms can adapt to, and the conditions necessary to start life.

Look, humans already adapted to being in space for prolonged periods of time. We adapted to every climate. But drop a naked human in a random spot on our planet, and he will die with high degree of probability. And that's after billions of years of evolution.

New comment by olegkikin in "Mitigations landing for new class of timing attack"

olegkikin — Thu, 04 Jan 2018 12:57:37 +0000

It's not the noise that prevents us from seeing distant planets, but the diffraction limits.

https://en.wikipedia.org/wiki/Diffraction-limited_system

New comment by olegkikin in "Dubai Billionaire's Tech Startup Takes on Amazon"

olegkikin — Tue, 02 Jan 2018 11:43:15 +0000

But what a joke. Compare:

https://www.noon.com/en-sa/search?q=i7-7700hq

https://www.amazon.com/s/ref=nb_sb_noss?field-keywords=i7-77...

New comment by olegkikin in "Intel with Radeon RX Vega Graphics: Core I7-8809G with 3.1 GHz Base, 100W TDP"

olegkikin — Tue, 02 Jan 2018 11:20:15 +0000

That's a good thing. Low-end GPUs suck anyway, but add so much weight and power consumption.

New comment by olegkikin in "How to test a random number generator (2010)"

olegkikin — Sat, 30 Dec 2017 20:46:26 +0000

So is this a good PRNG?

    f(i) = SHA256(i + salt)

New comment by olegkikin in "Dude, You Broke the Future [video]"

olegkikin — Sat, 30 Dec 2017 14:55:37 +0000

But corporation collections as paperclip maximizers is a bad analogy. Corporations generally produce something large numbers of people want (be it solar panels or cars in his example), whereas a paperclip maximizer AI produces paperclips that only it wants, destroying everything in its path.

New comment by olegkikin in "Building a Thermal Camera"

olegkikin — Thu, 28 Dec 2017 23:32:53 +0000

It works in commercial cameras like Hasselblad H4D-200MS.