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Topic: Why Ripple™ is against everything Bitcoin - page 15. (Read 45589 times)

vip
Activity: 1316
Merit: 1043
👻
FYI, the core network rules have already changed. Transactions from addresses with less than 300 XRP are now accepted as this limit is reduced.

This is a "hard fork" in Bitcoin terms.
legendary
Activity: 3038
Merit: 1660
lose: unfind ... loose: untight
legendary
Activity: 1764
Merit: 1002
Recent events just highlight exactly why Ripple is necessary.  Bitcoin needs Ripple in order to have a chance at legitimacy and mass adoption.  It may already be too late but for now, I stay hopeful. 

The more I learn about Ripple, the more I think that it's too important to leave in the hands of a private company. You almost want to fork the code the moment it becomes available, and replace the transaction-throttling XRPs with some tiny amount of BTC (like 100 satoshis per txn), so it's truly an open financial network. I can see large corporations signing onto 'Bipple' knowing that it's a consortium model outside of the whims of OpenCoin.

wow.  now we know why they're hesitating to release.
legendary
Activity: 1596
Merit: 1012
Democracy is vulnerable to a 51% attack.
Anything centralized can be broken. Ripple can be hacked seized and shut down in an instant if the powers that be don't want it around.

Since source is closed it isn't like someone can build on top of the ripple system....but why would you want to given things would likely still be centralized.
We 100% agree. That's why we designed Ripple not to require any central authorities and why we're working to open source the server code.
legendary
Activity: 2492
Merit: 1473
LEALANA Bitcoin Grim Reaper
Anything centralized can be broken. Ripple can be hacked seized and shut down in an instant if the powers that be don't want it around.

Since source is closed it isn't like someone can build on top of the ripple system....but why would you want to given things would likely still be centralized.
newbie
Activity: 28
Merit: 0
Recent events just highlight exactly why Ripple is necessary.  Bitcoin needs Ripple in order to have a chance at legitimacy and mass adoption.  It may already be too late but for now, I stay hopeful. 

How would Ripple help?  Opencoin can ignore a Seize Warrant? Or the Exchanges that are federated with Ripple can ignore a Seize Warrant?


As Ripple clearly facilitates fiat transfers we can be sure that Opencoin have complied with all the MSB regulations. Absolutely sure.
https://bitcointalksearch.org/topic/full-picture-on-us-msb-regs-state-and-federal-200443


Yeah, that's a key question to ask them this weekend at BTC2013 -- what licenses do they have, and which ones do they intend to get? Most startups in the financial space tend to assume that the regulations are for the other guys. But Chris Larsen has been around finance for a while, so I'm hopeful.
legendary
Activity: 1078
Merit: 1006
100 satoshis -> ISO code
Recent events just highlight exactly why Ripple is necessary.  Bitcoin needs Ripple in order to have a chance at legitimacy and mass adoption.  It may already be too late but for now, I stay hopeful. 

How would Ripple help?  Opencoin can ignore a Seize Warrant? Or the Exchanges that are federated with Ripple can ignore a Seize Warrant?


As Ripple clearly facilitates fiat transfers we can be sure that Opencoin have complied with all the MSB regulations. Absolutely sure.
https://bitcointalksearch.org/topic/full-picture-on-us-msb-regs-state-and-federal-200443
newbie
Activity: 28
Merit: 0
Recent events just highlight exactly why Ripple is necessary.  Bitcoin needs Ripple in order to have a chance at legitimacy and mass adoption.  It may already be too late but for now, I stay hopeful. 

How would Ripple help?  Opencoin can ignore a Seize Warrant? Or the Exchanges that are federated with Ripple can ignore a Seize Warrant?


Presumably, the Ripple network would 'mark down' the Dwolla-MtGox connection in the graph and find a new route for BTC/USD exchange instantly, a la IP routing. Coinlab and Coinbase are both MSB-compliant, for example.
hero member
Activity: 784
Merit: 1000
https://ripple.com/wiki/Network_splits

I seriously doubt if they have solved the Byzantine Generals Problem. Roll Eyes
LOL, I love this:

Note: There is currently no way to tell if you are in the network minority. This feature is coming.
It's actually trivial -- if there are, say, 1,000 generally trusted validators and you see validation from fewer than 700 of them, you might be in the minority. This has been implemented in the server about a month ago, the wiki is just out of date. The results of the Ripple consensus process are never sent to clients directly as verified. The ledger must pass a "validation gate" before it's considered confirmed and this validation gate will never be passed if you're in the minority because you won't get back sufficient validations.

In contrast, if you're in the minority, you won't know until manual intervention with Bitcoin. If the world splits (as it did recently) people who are on the minority blockchain have no way to know that they are transacting on a block chain the rest of the world does not think is the longest chain. At best, you could statistically infer you were in the minority eventually based on blocks being found too slowly.
 
Bitcoin could adopt the method Ripple uses to solve this problem. Major mining pools could periodically broadcast a signed object stating the hash of the tip of the blockchain they are currently building on. You could then know if you were in the minority.



What consensus is it you have been talking about anyway? Global consensus? If my transaction with someone only gets validated by about 20 nodes, how do the decision, say, propagates to the 1000 other validators globally? Especially if I try to send two transactions simultaneously to two different non-overlapping groups of validators?

And the way you talked about Bitcoin is, to say the best, dubious, it's up to the miner to work after the block it received from another, or persist on his own chain, even if you somehow choose the wrong chain due to propagation time, it's unlikely you will make the same mistake when you receive a second, or a third block. Moreover, Ripple never have miners, and Bitcoin common users never have to worry, their transactions will eventually be included.
full member
Activity: 232
Merit: 100
Recent events just highlight exactly why Ripple is necessary.  Bitcoin needs Ripple in order to have a chance at legitimacy and mass adoption.  It may already be too late but for now, I stay hopeful. 

How would Ripple help?  Opencoin can ignore a Seize Warrant? Or the Exchanges that are federated with Ripple can ignore a Seize Warrant?

newbie
Activity: 28
Merit: 0
Recent events just highlight exactly why Ripple is necessary.  Bitcoin needs Ripple in order to have a chance at legitimacy and mass adoption.  It may already be too late but for now, I stay hopeful. 

The more I learn about Ripple, the more I think that it's too important to leave in the hands of a private company. You almost want to fork the code the moment it becomes available, and replace the transaction-throttling XRPs with some tiny amount of BTC (like 100 satoshis per txn), so it's truly an open financial network. I can see large corporations signing onto 'Bipple' knowing that it's a consortium model outside of the whims of OpenCoin.
sr. member
Activity: 252
Merit: 250
Recent events just highlight exactly why Ripple is necessary.  Bitcoin needs Ripple in order to have a chance at legitimacy and mass adoption.  It may already be too late but for now, I stay hopeful. 
sr. member
Activity: 476
Merit: 251
COINECT
I can't believe Google Ventures and IDG Capital Partners (a $2.5 billion fund) just invested in OpenCoin. Man, these guys are pulling the wool over everyone's eyes!   Roll Eyes

Nothing makes me trust something more than when Google gets involved.
legendary
Activity: 1596
Merit: 1012
Democracy is vulnerable to a 51% attack.
Perhaps you'd show the source code, but that prevents you from stealth changing network core rules like you already did.
What are you referring to? We do change network core rules all the time, primarily to add features, but what do you think was a "stealth" change?
newbie
Activity: 28
Merit: 0
Listening to David Schwartz ("JoelKatz") describe Ripple -- really good overview around some of the use cases, better metaphors than you'll find on the Ripple site.

Starts around 12:30, Episode #007
http://letstalkbitcoin.com
vip
Activity: 1316
Merit: 1043
👻
Can you say more about that avalanche algorithm? Or is it just the process of switching to the majority (or plurality) ledger if there is one?
Yes, you switch to the majority valid ledger.

Quote
And what does a node do if for whatever reason all of its UNL nodes suddenly endorse a ledger that's on a different branch?
The node basically uses the following algorithm:

1) It switches to the majority of the ledgers it has not rejected. But it does not endorse that ledger.

2) The node tries to determine if that ledger can be endorsed -- determining whether it's a valid following ledger or not.

3) If the node determines the ledger is invalid, it rejects that ledger.

4) While this is going on, the node keeps tabs on any other nodes that have changed their position.

Over time, more and more nodes will veto any invalid ledgers in the mix and soon all honest nodes will be endorsing valid ledgers. The valid ledger with the most endorsements will eventually win.

This doesn't take nearly as long to actually happen as it might sound like. The ledgers will tend to be very, very similar and only differences are analyzed.

Perhaps you'd show the source code, but that prevents you from stealth changing network core rules like you already did.
hero member
Activity: 1036
Merit: 500
Ill give OpenCoin this. These guys are really, really smart. One of the best hustles Ive ever seen actually...
legendary
Activity: 1596
Merit: 1012
Democracy is vulnerable to a 51% attack.
Thanks for all the explanation, I'm getting a much clearer picture now. Is there a special reason the consensus process starts with a threshold value of 50%? Near 0% it would be like set union, while near 100% it would like set intersection. It seems logical to start at a lower value top mop up some transactions, and gradually ramp up the required level to come closer to a consensus. But why 50%?
The level is gradually increased to speed convergence. 50% for the initial operation was chosen at first arbitrarily -- the choice easiest to justify and the one that seemed the most "fair". But then simulation showed that it avalanched the fastest.

If you pick a number much higher than 50%, you don't have as much room to ratchet up, and that can cause pathological behavior. If you pick a number much lower than 50%, you can find a transaction in the consensus set that can be hard to acquire because you aren't connected to nodes that have it.

hero member
Activity: 714
Merit: 500
Martijn Meijering
Thanks for all the explanation, I'm getting a much clearer picture now. Is there a special reason the consensus process starts with a threshold value of 50%? Near 0% it would be like set union, while near 100% it would like set intersection. It seems logical to start at a lower value to mop up some transactions, and gradually ramp up the required level to come closer to a consensus. But why 50%?
legendary
Activity: 1596
Merit: 1012
Democracy is vulnerable to a 51% attack.
Can you say more about that avalanche algorithm? Or is it just the process of switching to the majority (or plurality) ledger if there is one?
Yes, you switch to the majority valid ledger.

Quote
And what does a node do if for whatever reason all of its UNL nodes suddenly endorse a ledger that's on a different branch?
The node basically uses the following algorithm:

1) It switches to the majority of the ledgers it has not rejected. But it does not endorse that ledger.

2) The node tries to determine if that ledger can be endorsed -- determining whether it's a valid following ledger or not.

3) If the node determines the ledger is invalid, it rejects that ledger.

4) While this is going on, the node keeps tabs on any other nodes that have changed their position.

Over time, more and more nodes will veto any invalid ledgers in the mix and soon all honest nodes will be endorsing valid ledgers. The valid ledger with the most endorsements will eventually win.

This doesn't take nearly as long to actually happen as it might sound like. The ledgers will tend to be very, very similar and only differences are analyzed.
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