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Since Google announced that it achieved quantum supremacy there has been an increasing number of articles on the web predicting the demise of currently used cryptography in general, and Bitcoin in particular. The goal of this article is to present a balanced view regarding the risks that quantum computers pose to Bitcoin.
All known (classical) algorithms to derive the private key from the public key require an astronomical amount of time to perform such a computation and are therefore not practical. However, in 1994, the mathematician Peter Shor published a quantum algorithm that can break the security assumption of the most common algorithms of asymmetric cryptography. This means that anyone with a sufficiently large quantum computer could use this algorithm to derive a private key from its corresponding public key, and thus, falsify any digital signature.
The prerequisite of being “quantum safe” is that the public key associated with this address is not public. But as we explained above, the moment you want to transfer coins from such a “safe” address, you also reveal the public key, making the address vulnerable. From that moment until your transaction is “mined”, an attacker who possesses a quantum computer gets a window of opportunity to steal your coins.
In such an attack, the adversary will first derive your private key from the public key and then initiate a competing transaction to their own address. They will try to get priority over the original transaction by offering a higher mining fee.
In the Bitcoin blockchain it currently takes about 10 minutes for transactions to be mined (unless the network is congested which has happened frequently in the past). As long as it takes a quantum computer longer to derive the private key of a specific public key then the network should be safe against a quantum attack. Current scientific estimations predict that a quantum computer will take about 8 hours to break an RSA key, and some specific calculations predict that a Bitcoin signature could be hacked within 30 minutes.
Not wanting to go technical but there are way to ensure a slow actual check.so however fast your quantum pirate churn keys , it could be made slow to check these, no issue for real transaction or legit error but a killer for a pirate.a digital version of 3 tries and timeout.Security issues for BTC.
From here: https://www2.deloitte.com/nl/nl/pag...tum-computers-and-the-bitcoin-blockchain.html
jog on
duc
Let's still have a sobering view: what's the difference between Bitcoin, the pill and a bit of paper with a dollar sign printed on it?The Bit Short: Inside Crypto’s Doomsday Machine - Global Intel Hub
From Medium This is the story of a Bitcoin trade — the most financially impactful trade I’ve ever made in my life. It’s also the story of the deep-yet-frantic investigation of the crypto ecosystem that led me to make that trade. And it’s the story of what’s really going on in crypto — and what...globalintelhub.com
What a great article
The article Duc referenced was a real eye-opener as I've failed to understand the enthusiasm of traders wanting to pile into something that is non-existent. There are a few great passages in the article but none more sobering that this one "crypto is a highly liquid market — exactly the kind that attracts crooks, and crooks like to do fraud"
What about Bob
Without giving too much away, there is a phone conversation with Bob & the exchange with him solved the mystery of cryptos. There are millions of Bobs, all around the world. Many of them are leveraged up to their eyeballs & almost all of them are going to lose their money when it all comes crashing down.
How to wrap my head around cryptos
Imagine this scenario. In the palm of my hand, I have a pill (there are only 100 pills ever made) making them very scarce because that's all there will be ever made. So how much are they worth? What does the pill do? you ask - The pill cures childhood cancer. Could you imagine the enthusiasm to buy the pills? Image trading them, the value would skyrocket as bidding would drive the price higher & higher.
The problem with the scenario
The pills never existed but the "value of the pill" was built entirely on the enthusiasm of traders.
Here is a story about a dead horse
The story is about Chuck who moved to Montana & bought a horse from a farmer for $100.00.
The farmer agreed to deliver the horse the next day.
The next day he drove up & said
"Sorry, Son, but I have some bad news, The horse died."
Chuck, "Well, then just give me my money back."
The farmer, "Can't do that. I went and spent it already."
Chuck, "Ok, then, just bring me the dead horse."
The farmer asked, "What are you going to do with him?"
Chuck, "I'm going to raffle him off."
The farmer, "You can't raffle off a dead horse!"
Chuck, "Sure I can. Watch me. I just won't tell anybody he's dead."
A month later, the farmer met up with Chuck & asked
"What happened with that dead horse?"
Chuck, "I raffled him off. I sold 500 tickets at two dollars each & I made a net profit of $898.00."
The farmer, "Didn't anyone complain?"
Chuck, "Just the guy who won, so I gave him his two dollars back."
Skate.
Let's still have a sobering view: what's the difference between Bitcoin, the pill and a bit of paper with a dollar sign printed on it?
What do you mean the dollar value backed by the government?A simple answer is the "strength" of the backer, that's the difference
The perceived value of a bitcoin or my magical pill represents very little - as it has no intrinsic value & not guaranteed by another "entity or government".
I still have some pills if anyone is interested
Make me an offer as I'm sure there would be others more gullible who would be willing to buy them from you. There is tremendous profit to be made. Hurry before they are all gone!!
Remember
My pills are as rare as hen's teeth.
Skate.
Claimed in the video: BTC is an 'asset'. How is it an asset, other than as a speculative instrument?
In the other corner you have Buffett & Munger.
This is the Tulip mania and South Sea mania playing out in real time.
Any of the above shares purchased, would see you now in profit so far today.Not so much safety and stability its the hedge against inflation if you don't think inflation then don't buy gold.
EFT's don't give as much bang for your buck.
My choice of gold miners
NCM is OK
NST is now a monster with the merger
EVN is my first choice
But for a 20% + bounce you would want a mid cap.
RRL I am still holding I feel it is the one to be in. They might of paid a bit much for Tropicana and shares have been punished but I still see them as undervalued. (I am at a lose ATM brought a bit to early)
GOR looked good as well.
Just my thoughts take them with a grain of salt.
Indeed mr Duc, i am amazed at how low volatility is.Today's roundup from blogoland:
Some more 'seasonality' data:
View attachment 125018
This is definitely noticeable.
View attachment 125019
Again, mentioned in previous post, both Small & Medium caps seemed to have joined the party.
View attachment 125020
Probably alluding to the fall in the 10yr yield. Financials love a steep curve.
View attachment 125021
Certainly the anti-inflation meme (argument) gathering steam.
View attachment 125022
Crypto:
View attachment 125023
Told Ya!
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The BEST one of the lot...
View attachment 125025
This provides confidence:
View attachment 125026
As does this:
View attachment 125027
This makes me nervous...
View attachment 125028
Over the w/e I'll be undertaking a detailed analysis of the inflation or lack of thereof arguments.
jog on
duc
Indeed mr Duc, i am amazed at how low volatility is.
Not yet out of one of the biggest self imposed economic crisis of the last 50y, open software and commercial war with China in a market with up or down of 1pc a day, or roughly a year of bond interest
And vix so low it is ridiculous.
What am I missing?
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