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cfcosta

202 karma · joined May 14, 2012

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cfcosta··on Bitcoin: Addressing the Ponzi Scheme Characterization
I don't think anything lel. Not sure why you are so up in arms about this, but that's why you diversify.

Also, it's completely opt-in, you don't ever need to buy any Bitcoin if you don't want to. It's going to crash and burn, or prosper on its own merits.

cfcosta··on Bitcoin: Addressing the Ponzi Scheme Characterization
Not too long ago, Venezuela wasn't Venezuela, and Argentina was one of the richest countries in the world.

It can happen, it has happened, and will happen again.

cfcosta··on “I am literally losing sleep” over Java (1996)
Because Sun (or oracle, I'm bad with time) decided to forbid MS to keep developing their own implementation.
cfcosta··on Share Your Plans for 2022
Hey, been in this situation and went out of it at some point. Some medicine, some mental work to make things better. You can make it work for you if you try.

If you need someone to talk to, just send me a message, or reach me on my e-mail: me at my username dot com

cfcosta··on Ask HN: Is Web 3.0 just crypto or something more?
Not an expert in any way, but what I've seen it described more than once is: web3 is the normal web with added payments/finances and decentralized identity, normally via metamask. It theoretically doesn't need blockchain, but I think the term itself is more commonly associated with it though.

You can still just do something that you authenticate using metamask or some other form of DID without using blockchain for anything else and still call your application web3, and I think this is a good distinction to make. Metamask is really good as an identity provider that is always online and doesn't require a centralized party, you can still get value from it without touching the finance part at all.

cfcosta··on Cornell McRay T'Racing
He also had a brilliant career as a driver, and people remember him very fondly. It's about the way he lived, not the way he died.
cfcosta··on I did a Mixergy interview so bad they didn't even release it
More often than I admit, I think about this quote by Mark Twain: "I apologize for such a long letter - I didn't have time to write a short one." You have to think about who's going to hear or listen to you, it's not just about being precise and descriptive.
cfcosta··on Who Is Bitcoin Creator Satoshi Nakamoto? What We Know–and Don’t Know
Nothing, I guess. He might be found, he might not, or he might just be dead.
cfcosta··on SpaceX hits $100B valuation after secondary share sale
True. Another thing that I keep thinking is that currently the first stages of the rockets are not reusable. Even if they have to build a new starship per flight, they can just reuse the boosters and still be miles ahead of anyone else, with a Saturn V sized rocket ready to launch.

Plus they can expand the real state in the ISS much cheaper by just docking and leaving it there.

cfcosta··on Missing line in a smart contract leads to $10M hack
I'd say this is a problem of a really new tech, with the advanced attack vectors and methodologies we have nowadays.

Thankfully, other cryptos (such as Cardano) are building their smart contract platform with correctness/security in mind (compiler checks and so on), so we might see less problems like this.

cfcosta··on New study detects lottery-like behavior in cryptocurrency markets
Not only. There are many places with internet and poor banking system, Nigeria comes to mind.
cfcosta··on Bitcoin as a Battery
Both Cardano and BNB use proof of stake, with Cardano being much more decentralized (but smart contracts are coming next few months), and BSC/BNB being the most popular currently. You can also use BTC as a wrapped asset (backed by a smart contract) on both the BSC/Eth networks.

PoW is going away quickly, but Bitcoin is not going to move, the "difficulty" is by design at least in the current concept of it as a storage of value.

Edit: By the way, it is possible (or will be in the future) to run staking pools on Cardano on Raspberry Pis, and get the same benefits as bigger hardware. Currently it needs 4~8gb of ram afaik, but pis are getting faster every release, next one might be good.

cfcosta··on Ask HN: Cheapest/easiest way to host a static site?
Please both of you refer to the rules, specially the part about assuming good intent.
cfcosta··on Visa Plans to Enable Bitcoin Payments at 70M Merchants
Hey, I didn't see your reply, sorry! But yes, Binance does have a USDT/USD trading pair. Then you just withdraw to your bank account (the mechanics of this vary by country).
cfcosta··on IBM Is Destroying Red Hat and Red Hatters Are Leaving
I left Red Hat less than a month ago. No relation at all with IBM, in my experience they have been welcoming and pretty aligned with the goals my team had. Great company.

Sorry if I gave them ammo by leaving and inflating the numbers, but it was only a coincidence, I swear.

cfcosta··on Visa Plans to Enable Bitcoin Payments at 70M Merchants
>The other part is that it is not easy to directly trade USDT for USD. Kraken is the only place you can do so directly, it is the only place the peg is directly tested. Apart from that to get USD you need to trade to something else, like BTC or ETH, and then sell that for dollars.

What do you mean? I trade USDC and USDT from and to Fiat using Binance, and it's a breeze. I get the funds directly on my bank account in 5 minutes or so, and I imagine the same happens on Kraken, coinbase pro, gemini/blockfi.

cfcosta··on Visa Plans to Enable Bitcoin Payments at 70M Merchants
Isn't cryptotrader.tax free, or at least freemium?
cfcosta··on Vitalik escalates ETH 2.0 merge as miners plan a 51% attack
Not OP, but I can give some elaboration on why Cardano is a really interesting project:

1. Staking in Cardano does not lock up your funds, and is really decentralized, getting more every day. Because of that, more than 70% of all coins are currently staked. This brings less volatility to the price and ensure longevity of the chain. The interest is not too big too, everything seems as sustainable as it can be.

2. Cardano supports assets natively instead of having them just being backed by smart contracts (this is/will be still possible though), which means that there are no extra gas fees to send/receive stablecoins or assets other than Ada.

3. Babel fees are part of 2, it means that the transaction fees can be paid by native tokens, not only ada. This is a huge improvement from the BSC or Eth, where you need BNB/ETH to pay transaction fees even if you're only dealing in stablecoins.

4. Smart contracts are finally coming in Q2, which will bring DeFi to Cardano (this explains the price mooning in late feb, early march, because of the mary hardfork).

5. Forks and updates in the chain are painless, last one I didn't even had to send money to a new wallet or anything like that.

6. New developments and features to the chain and ecosystem are being "baked into the protocol", in a sense. Project Catalyst is the first step for this, financing some projects, but in their roadmap they plan on giving away all control of the direction of the coin, and only work as a service provider to the ecosystem using the same infrastructure as all the other projects.

I'm really bullish on this coin, not only on price but also on the kinds of problems it can solve. Can answer more questions if you have any :)

cfcosta··on Gab has been hacked and 70GB of data leaked
That's revisionism, the political rift was already there at least from the second Dilma government.
cfcosta··on Bitcoin: The Idea That Eats Smart People
None actually, inflation is felt immediately on Bitcoin. The government would have to keep their books in order, which thankfully crypto also helps.

Market making in crypto is usually done by overcollateralized liquidity pools, farming and staking.

cfcosta··on Nigeria's Central Bank has prohibited banks from processing cryptocurrencies
Teslas, gift cards.
cfcosta··on IBM has cut its blockchain team down to almost nothing – sources
Red Hat employee here as well. Didn't feel any difference, it's still a great place to work, but I don't usually interact with IBM folks.
cfcosta··on I'm tired of this anti-Wayland horseshit
Depends on what you plan on use when you do make a switch. In general, X applications will keep using Xdefaults because they run on XWayland, and the window manager will handle input configuration, displays, wallpaper and so on.

There are some ad-hoc implementations for doing what you want iirc, but it really is more "integrated" than what you are used for.

I have to test, have not done that in quite a while, but I think that you can just call let's say "sway" on the CLI and it will start wayland directly.

cfcosta··on German police take down 'world's largest darknet marketplace'
Yes. If they were as widely available, you would be able to know what you're buying, how much and hopefully how to apply it as safely as possible. Having drugs being illegal make them stronger, as they have to be transported in secret, and create derivative drugs to fill lower price ranges for long term addicts, such as crack and oxy.
cfcosta··on Jack Ma fell to earth and took Ant's mega IPO with him
I don't think it is a case of the CCP stopping all entrepreneurs, but a case of them choosing which companies succeed and which fails.
cfcosta··on Managing my personnal servers in 2020 with K3s
Containers != Docker.

Podman supports rootless containers for quite a while, without a daemon, and it is compatible with Kubernetes.

cfcosta··on Ask HN: Should I learn C/C++ or Rust as my first systems programming language?
I would say give a nice look at C and C++, you are probably going to appreciate Rust a lot more if you know where your foot can be shot by it.

Learning just C/C++ is also completely fine, so don't think it is a waste of time or anything like that, both are not going to go anywhere and having them on your toolbelt will help even if you do decide to go with Rust in the future.

cfcosta··on Underrated predictor of success: willingness to be low-status
No need to, to be honest. The grind only goes while you still enjoy what you are doing. Anything else is harming your productivity and well-being, be careful.

Also, development in a sense is a numbers game. You get more experience and try to expand as much as you can, rinse and repeat. Entrepreneurship is only another way, you can make it happen (and many of us did) just being a normal employee.

cfcosta··on Blizzard: Starcraft II Update
It does not sound like "we care about our product" when you killed it in the first place.
cfcosta··on Nine in ten adults think buying latest smartphone is waste of money
I have a 6T pro, and besides massive burn-in, it's the best phone I've ever had.
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