MikkisJ
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Activity: 126
Merit: 11
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September 23, 2013, 09:29:49 PM |
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Here is a simulation of someone betting the max bet on JD with an unlimited bankroll. After 2,000 max bets, how far up or down might they be? What would be the peak profit during that time? This is relevant for determining how lucky Nakowa is. Nakowa is up about 50 max bets at the moment, off of around 2000 max bets wagered.
so...you're saying there's a chance? That is a very simplified calculation, that doesn't take into consideration a lot of factors. The probability of what is happening is very very low.
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Bugpowder
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September 23, 2013, 09:42:01 PM |
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Here is a simulation of someone betting the max bet on JD with an unlimited bankroll. After 2,000 max bets, how far up or down might they be? What would be the peak profit during that time? This is relevant for determining how lucky Nakowa is. Nakowa is up about 50 max bets at the moment, off of around 2000 max bets wagered.
so...you're saying there's a chance? That is a very simplified calculation, that doesn't take into consideration a lot of factors. The probability of what is happening is very very low. Of course it is simple. When Dooglus provides me an updated total betting history of nakowa, we can do a shuffle analysis and see for real. Last time I did it when he was up 4000 BTC, it was around 7% chance.
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romerun
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Activity: 1078
Merit: 1002
Bitcoin is new, makes sense to hodl.
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September 23, 2013, 09:54:06 PM |
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He found pattern man it's not like he randomly bets as in simulations
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RationalSpeculator
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Activity: 294
Merit: 250
This bull will try to shake you off. Hold tight!
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September 23, 2013, 10:02:50 PM Last edit: September 27, 2013, 02:15:55 PM by RationalSpeculator |
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Well, he does learn people how it feels to be ass raped -5000 btc in 1 session Not a single investor has made any profit since start (with the exception of those that divested on high). Curious how low investment will go.
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Mitchell
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Verified awesomeness ✔
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September 23, 2013, 10:03:23 PM |
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Damn. That guy knows how to bet.
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Lohoris
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September 23, 2013, 10:22:40 PM |
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Of course it is simple. When Dooglus provides me an updated total betting history of nakowa, we can do a shuffle analysis and see for real. Last time I did it when he was up 4000 BTC, it was around 7% chance.
5% chance is 1/20. Many people here will be familiar with dice. Roll a 20 sided dice, get a 20 --> 5% chance. You know, it happens. He critted just-dice.
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Lohoris
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September 23, 2013, 10:23:06 PM |
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Damn. That guy knows how to bet.
Nope. He's just lucky. Or he's cheating. No other options on the table.
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Peter R
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Merit: 1007
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September 23, 2013, 10:33:02 PM |
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Some thoughts on the whale's win today (conclusion: he had a 67% chance of pulling it off).
The whale can STOP betting when he chooses, so the probability of what happened today is not as low as it seems. I haven't dug up the exact numbers, but let's assume:
1. He wanted to win 2500 BTC (after which point he would stop gambling) 2. He was willing to go down as much as 10,000 BTC before giving up 3. He was betting 200 BTC each time and always attempting to 2X his bet (this just simplifies the simulation).
I ran the following Mathematica code:
In[6]= bankroll := 10000; target := 2500; n := 10000;
bet := If[Random[] > .505, 1, -1]
outcomes = Table[profit = 0; While[profit < target && bankroll > -profit, profit += 200 * bet ]; If[profit > 0, 1., 0], {n}];
100 * (Plus @@ outcomes)/ n
Out[6]= 67.23
So, 67% of the times that he applies this strategy he would earn his 2500BTC target before going bust.
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Lohoris
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September 23, 2013, 10:38:40 PM |
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Some thoughts on the whale's win today (conclusion: he had a 67% chance of pulling it off).
The whale can STOP betting when he chooses, so the probability of what happened today is not as low as it seems. I haven't dug up the exact numbers, but let's assume:
1. He wanted to win 2500 BTC (after which point he would stop gambling) 2. He was willing to go down as much as 10,000 BTC before giving up 3. He was betting 200 BTC each time and always attempting to 2X his bet (this just simplifies the simulation).
I ran the following Mathematica code:
In[6]= bankroll := 10000; target := 2500; n := 10000;
bet := If[Random[] > .505, 1, -1]
outcomes = Table[profit = 0; While[profit < target && bankroll > -profit, profit += 200 * bet ]; If[profit > 0, 1., 0], {n}];
100 * (Plus @@ outcomes)/ n
Out[6]= 67.23
So, 67% of the times that he applies this strategy he would earn his 2500BTC target before going bust.
This is a very interesting take. Unrelated fun fact: while I don't think he's cheating, it is worth noticing that if he was cheating, then pretending to be victim of a gambler's fallacy (like he is doing) is actually a great tactic to go unnoticed.
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chriswen
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September 23, 2013, 10:47:24 PM |
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So, 67% of the time he wins 2500 btc. 33% of the time he loses 10,000 btc.
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Peter R
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Activity: 1162
Merit: 1007
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September 23, 2013, 10:52:41 PM |
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So, 67% of the time he wins 2500 btc. 33% of the time he loses 10,000 btc.
Yes, I believe so. His expected return is still negative (as required if he is not cheating): 0.67 * 2500 BTC - 0.33 * 10,000 BTC = -1625 BTC. Of course the exact probabilities depend on how much he is willing to lose, and we don't know that for sure yet!
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Peter R
Legendary
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Activity: 1162
Merit: 1007
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September 23, 2013, 11:00:02 PM |
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Some thoughts on the whale's win today (conclusion: he had a 67% chance of pulling it off).
The whale can STOP betting when he chooses, so the probability of what happened today is not as low as it seems. I haven't dug up the exact numbers, but let's assume:
1. He wanted to win 2500 BTC (after which point he would stop gambling) 2. He was willing to go down as much as 10,000 BTC before giving up 3. He was betting 200 BTC each time and always attempting to 2X his bet (this just simplifies the simulation).
I ran the following Mathematica code:
In[6]= bankroll := 10000; target := 2500; n := 10000;
bet := If[Random[] > .505, 1, -1]
outcomes = Table[profit = 0; While[profit < target && bankroll > -profit, profit += 200 * bet ]; If[profit > 0, 1., 0], {n}];
100 * (Plus @@ outcomes)/ n
Out[6]= 67.23
So, 67% of the times that he applies this strategy he would earn his 2500BTC target before going bust.
This is a very interesting take. Unrelated fun fact: while I don't think he's cheating, it is worth noticing that if he was cheating, then pretending to be victim of a gambler's fallacy (like he is doing) is actually a great tactic to go unnoticed. I agree. As long as we can't statistically prove that he is cheating, to within let's say p < 0.01, then he could continue cheating
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Stunna
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Primedice.com, Stake.com
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September 23, 2013, 11:16:45 PM |
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I think this is irresponsible at this point, max bet should be lowered to protect investors in my opinion. Even though j-d is my competition it is distressing to see their profit fall lower and lower every day. My advice is to lower max bet or increase edge or both. Also, doog should explore the possibility that nakowa has found some sort of exploit.
When situations like this occur it is important to go back to the drawing board and figure out how to prevent further losses like this. Changes should have been made a while ago in my opinion.
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addi
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September 23, 2013, 11:19:25 PM |
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I think this is irresponsible at this point, max bet should be lowered to protect investors in my opinion. Even though j-d is my competition it is distressing to see their profit fall lower and lower every day. My advice is to lower max bet or increase edge or both. Also, doog should explore the possibility that nakowa has found some sort of exploit.
When situations like this occur it is important to go back to the drawing board and figure out how to prevent further losses like this. Changes should have been made a while ago in my opinion.
couldn't agree more
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galbros
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September 23, 2013, 11:45:15 PM |
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+1 Peter R
This is exactly the type of analysis that explains what is going on. IIRC he was down 4K coins at least three times today but kept going until he made his target number.
For individual investors I guess the trick would be to divest when he is down a lot. Of course, you have to be on when he's playing to do that.
As for the site as a whole I guess it is wait for the big loss, but at this point, he may be willing to lose even more than 10K coins.
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GreenBits
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Activity: 1148
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September 24, 2013, 12:10:53 AM |
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Of course it is simple. When Dooglus provides me an updated total betting history of nakowa, we can do a shuffle analysis and see for real. Last time I did it when he was up 4000 BTC, it was around 7% chance.
5% chance is 1/20. Many people here will be familiar with dice. Roll a 20 sided dice, get a 20 --> 5% chance. You know, it happens. He critted just-dice. nah, Just-Dice rolled a natural 1..
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rigel
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Merit: 1001
Thank God I'm an atheist
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September 24, 2013, 12:12:13 AM |
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Where are you Dooglus?
Any comments on what's going on?
Do you think he found an exploit or is just very lucky?
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dooglus (OP)
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Activity: 2940
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September 24, 2013, 12:19:47 AM |
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For what it's worth, here are the profit charts. Notice that for almost all of today's session he was down. Then he quit while ahead, as usual: As for the calls to "change something", if he's cheating then limiting the maximum bet won't stop him winning, and if he isn't cheating and is just lucky then limiting the maximum bet will only slow his inevitable losses. I don't see how it helps in either case. One thing that I can change that will protect investors is whether the site is up or not. If I take it down they won't lose any more. But I suspect that most investors wouldn't like that decision. They want the site to stay up so they can win their coins back again. The ones who want this to end have the option already of divesting. I'm quite tempted to just give up on this whole thing. It looks like the site is simply at nakowa's mercy. He's promised me in the past that he won't play any more, but never sticks to his word. So what do I do? Continue to let the investors take these horrific losses?
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Just-Dice | ██ ██████████ ██████████████████ ██████████████████████████ ██████████████████████████████ ██████████████████████████████ ██████████████████████████████ ██████████████████████████████ ██████████████████████████████ ██████████████████████████████ ██████████████████████████████ ██████████████████████████████ ██████████████████████████████ ██████████████████████ ██████████████ ██████ | Play or Invest | ██ ██████████ ██████████████████ ██████████████████████████ ██████████████████████████████ ██████████████████████████████ ██████████████████████████████ ██████████████████████████████ ██████████████████████████████ ██████████████████████████████ ██████████████████████████████ ██████████████████████████████ ██████████████████████████████ ██████████████████████ ██████████████ ██████ | 1% House Edge |
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jabetizo
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September 24, 2013, 12:23:53 AM |
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So what do I do? Continue to let the investors take these horrific losses?
yes, nobody is forced to invest or stay invested.
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maqifrnswa
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September 24, 2013, 12:31:08 AM |
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So what do I do? Continue to let the investors take these horrific losses?
Barring cheating, it is what it is. JD is a high-risk gambling site. Variance increases when someone comes by with a bigger bankroll than JD. I'm down 20%, but I know what I'm getting myself into and that this could happen. Keep on running the business, improve features - try to attract more whales. I'll take my shots.
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