mareko

10 ms·

31.
Extraordinary radio waves from the heart of Milky Way discovered by scientists(pennlive.comundefined)
3 points by mareko 5y ago|0 comments
32.
by mareko 5y ago
Valora | San Francisco, Berlin, and Remote | Hiring Software Engineers, Mobile Engineers, Product Managers, and Designers | All Levels | 100K - 200K + equity | FULLTIME, ONSITE, REMOTE, VISA | https://valoraapp.com Spun out of c
33.
Japan successfully tests rocket engine propelled by new technology(japantimes.co.jp)
1 points by mareko 5y ago|0 comments
34.
by mareko 5y ago
Luckily there is a whole new generation of PoS networks that don't rely on proof of work. Some even automatically buy carbon offset credits to maintain a carbon neural footprint.
35.
by mareko 6y ago
Not all cryptocurrencies are the same. Many newer ones run PoS which doesn't 'waste' energy. The Celo network goes even further and is carbon negative. It sends a portion of block rewards to Project Wren, which uses them to b
36.
by mareko 6y ago
I think you're missing the fact that with PoS, you can use positive _and_ negative incentives to incentivize desired behavior while with PoW, you only have positive incentives. Once you can slash bad actors for enabling a double spend
37.
by mareko 6y ago
For newer PoS protocols, they would need over 66% and they would lose money if they misbehaved making it likely uneconomical to do so. This is the big advantage of PoS over PoW. There are both positive incentives (e.g. block rewards) but al
38.
by mareko 6y ago
No. Funds are still protected by a private key once you create an account, so stealing a phone number doesn't help you spend someone's money.
39.
by mareko 6y ago
What about cash that you can send like an SMS on a network that offsets its CO2? Celo is proof of stake based and also issues part of its block rewards to Project Wren. It has a native stablecoin and a decentralized phone verification proto
40.
by mareko 6y ago
You can find the React Native-based source code here (Apache 2 licensed): https://github.com/celo-org/celo-monorepo/tree/master/packag...
41.
Valora – An open source alternative to Facebook's and Libra's Novi wallet(valoraapp.com)
23 points by mareko 6y ago|3 comments
42.
by mareko 6y ago
These are great questions. Here are my thoughts / answers: > 1. Is there a reason this is tied to the blockchain For FB, you're 100% right. FB could have likely just used a relational DB in the short term. However, if you don&#
43.
by mareko 6y ago
cLabs | San Francisco, Berlin, Buenos Aires, and Remote | Hiring Security Engineers, Data Engineers, Dev-Rel Engineers, Product Managers, Cryptographers, SRE/Infra and Mobile Engineers | All Levels | FULLTIME, ONSITE, REMOTE, INTERNS,
44.
by mareko 6y ago
Venmo for all. We're used to Venmo in the US but many places in the world don't have an equivalent. Valora is a new Venmo-like mobile app that's built on the Celo blockchain, a new network where mobile devices can efficiency
45.
Oceanbird's 80-meter sails reduce cargo shipping emissions by 90%(newatlas.com)
5 points by mareko 6y ago|0 comments
46.
by mareko 6y ago
This is good argument for increasing minimum wage. The federal minimum wage is still only $7.25. Inflation adjusted, it has been decreasing since 1968 [1]. Once you factor in rising healthcare spending, which has gone up by 5.5x in the same
47.
by mareko 6y ago
cLabs | San Francisco, Berlin, Buenos Aires, and Remote | Hiring Security Engineers, Data Engineers, Dev-Rel Engineers, Product Managers, Cryptographers, SRE/Infra and Mobile Engineers | All Levels | FULLTIME, ONSITE, REMOTE, INTERNS,
48.
by mareko 6y ago
Fall 2020
49.
by mareko 6y ago
Great question! We will be opening up fall internship applications in a week or so :)
50.
by mareko 6y ago
cLabs | Berlin, Buenos Aires, and Remote | Hiring SRE/Infra, Cryptographers, Data Engineers, Dev-Rel Engineers, Product Managers, Security Engineers and Mobile Engineers | All Levels | FULLTIME, ONSITE, REMOTE, INTERNS, VISA | https:&
51.
by mareko 6y ago
I'm a little biased, but check out celo.org and valoraapp.com. Celo is a Proof of Stake protocol built to work efficiently on mobile, with stable value, and with phone numbers as identifiers.
52.
by mareko 6y ago
It's true that Bitcoin is a poor medium of exchange: it's not stable, has slow transaction times, does not work well with mobile devices, and has intimidating identifiers, but it did open the door to new ideas that will likely soo
53.
by mareko 6y ago
Could you be hearing one of the many foghorns in the bay? https://youtu.be/jJWd5eHeFY4
54.
by mareko 6y ago
This would be true if the planet were stationary, but since it's orbiting the sun, you can either take some of its momentum, or give it some momentum, by doing a gravity assist in the direction of the planet's orbit, or in the opp
55.
MIT Spinout Creates Rapid Covid-19 Diagnostic Test(psychologytoday.com)
4 points by mareko 7y ago|0 comments
56.
Can charcoal and dung beatles make beef better for the environment(bbc.com)
3 points by mareko 7y ago|0 comments
57.
by mareko 7y ago
C Labs | San Francisco, Berlin, and Buenos Aires | Hiring Software Engineers, Mobile Engineers and Cryptographers | All Levels | 100K - 200K + coins | FULLTIME, ONSITE, REMOTE, INTERNS, VISA | https://celo.org C Labs is one of m
58.
Encryption debate continues with William Barr pressuring Apple to unlock iPhone(vox.com)
6 points by mareko 7y ago|0 comments
59.
by mareko 7y ago
If you're interested in very efficient MCS style reader writer locks, check out this paper: https://people.csail.mit.edu/mareko/spaa09-scalablerwlocks.p...
60.
by mareko 7y ago
Yes! We just added them. Here's the one for SF: https://jobs.lever.co/celo/2daceba4-1258-4445-9e8f-a96d79690...

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