No any critical flaws found in Nxt-like proof-of-stake. On other hand, no any strict formalization made yet as well.

So there are two things to be done:

1. Formalized model showing Nakamoto's property could be met in proof-of-stake with contribution to multiple forks allowed(in other cases there are other problems with formalization). Simulations show the property is seems to be met, thanks to cumulative difficulty working more or less ok as fork selector function(btw, PoS coins with longest chain rule have problems here, at least).
I'm now talking with guys much more skilled in CS/math about possibility of the truly formal framework.

2. Practical contributions to Nxt / other projects around. Nxt's algo seems to be pretty safe, though block delays distribution is needed to be better(closer to average value). It will reduce or mb even eliminate incentive to contribute to multiple forks(by trying to do private branch attacks, then share private forks, then we have majority of forgers having multiple-branch forging with N@S possible as result in such environment). I hope some improvements will be made in 1.7/1.8.

And yeah, "test coin"(don't like "coin" word here, I would like to call it "experimental blockchain engine for hackers"). Making some changes now, so it will be possible to switch Qora's PoS to Nxt's by changing 1 line of code(and introduce other consensus models easily). Then yeah, multiple branching will be introduced in Scorex. Some non-consensus things will be tested as well, e.g. Bill White's scalability proposal etc.

Can we agree that PoS has more positive things than flaws (like inflation, on which Daedelus is avid supporter )?

1. Disagreed? You just can't be more wrong. Watch this simple video created personally by me. It's not state-of-the-art, but I think it will prove what I am thinking about creating more coins.
2. NO! I just gave it like example. You can't compare PoS interest with the one who is offered by banks just like you can't really compare PoS with inflation. I was agreed it is an inflation, but it should be treated different. That's it.
3. Again NO. I already explained why PoS is needed for some coins. Some people posted tutorials on how it works, but I believe that you know what it means. PoS should be considered for something good, not just call it inflation.
4. IF given coin remains stable @ price it's market cap should rise steadily, which means that if we accept that the coin is business, then your business is getting bigger and therefore receive attention from some more people.

I think you are wrong. If a coin is with let's say 20M in supply and interest is 3%/year only about 610k coins/year will be created. This is like holding your savings in bank + faster and more secured network.

Daedelus,

I can do that too you know, but I want to ask you something as well. Are you related to barabbas?

This discussion leads to nowhere, because we both have different opinions about PoS crypto coin supply inflation. Probably it will be good if more people express their opinions about PoS crypto coin supply inflation and if it can be compared with real life inflation.

I simply can't provide any evidences, because lately crypto-world is a place filled with so many scammers.

P.S. And in my eyes, I will continue to think that PoS interest* is more profit than inflation.

BitJohn, Sylon,

We are dealing with inflation here.

Of course my examples are valid if we are talking about perfect market environment, which is pretty much impossible in crypto-world, but I just think it can be achieved.

Will repeat myself though... I am 100% agree with you.

What are they ? The only useful thing I see would be a decentralized marketplace. As far as I know NXT has it but the servers hosting it centralize so its not completely decentralized and as soon as OpenBazaar is out it will be rendered useless.

And I suggest the supporters of NXT not shill for a bit to be honest.  It might backfire. If people buy in then it continues going down near .000020, you'll here a lot of FUD from the people around here.  They might even accuse you of hyping it so you guys could dump your shares to them.  Some FUD won't make sense but they'll say it, and some will believe it anyway.

I think that the bigger problem of purely PoS coins is the price of the coin. Let's say you have $100 worth of some altcoin, but the price stays pretty much the same (this example excludes declining) for a long time. Having this $100 is in no use for you, because your "investment" is not working for you. This is how this coin will die in short time.

You are the one who is wasting your breath. I will never look on PoS like real life inflation as long as the annual interest is not more than 2-4%. If the currency is developed good, market can easily deal with that "inflation". With that said, I will repeat that people will be more keen to hold their coins which vastly improves the network of the coin.

At the end I will say that I'm not arguing with you and I completely agree with your scenario about inflation, but I just think it can't be compared with cryptocurrencies.

Cheers,
Spartak

Though I recently didn't followed DNotes and I think it is still PoW only coin, what can you tell about it as example for steady growth? Of course it is nearly impossible to preddict what will happen in 1-3 or even 10 years, but I think that every coin who has active development and community has a good chance for steady rise in price.