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Author Topic: bustabit – The original crash game  (Read 54448 times)
devans
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March 05, 2018, 07:40:04 AM
Last edit: March 05, 2018, 07:51:29 AM by devans
 #181

(…)

very interesting posting because all the points would even fit to another site and the owners who scammed their Investors!

It's also entirely misleading and outright false in most parts. I've already responded to his claims and won't repeat myself, but I encourage anyone interested to read my previous replies in this thread.

Nearly a week after saying he would he still hasn't opened a scam accusation and instead continues trying to derail this discussion. That speaks volumes about his intentions.


maybe the best would be to stop offering the offsite feature for Investors

Why? In case that didn't come across well: An investor that misuses the system by lying about how much offsite money he is prepared to risk only increases his own risk. He does not pose a danger to other investors.

Offsite investments are an amazing tool for responsible investors and using them is entirely optional. I do not believe they should be removed just because it is possible to use them improperly.

bustabit – The original crash game
bustadice – Fast-paced bustabit-like dice with no wager limit
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March 05, 2018, 08:04:24 AM
 #182




maybe the best would be to stop offering the offsite feature for Investors

Why? In case that didn't come across well: An investor that misuses the system by lying about how much offsite money he is prepared to risk only increases his own risk. He does not pose a danger to other investors.

Offsite investments are an amazing tool for responsible investors and using them is entirely optional. I do not believe they should be removed just because it is possible to use them improperly.

why? just to have a healthy Investor environment that would be good for the site. Investors who are misusing the system are hurting themselves and the site who gives them the option. they are actually gambling and Investors shouldnt gamble IMO

but you as the owner can do whatever you like. I dont and didnt accuse you guys because as long as the Investors are not scammed out of their investment all is fine IMO


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March 05, 2018, 09:56:27 AM
 #183

However I think he made the same mistake I struggled with too, which was thinking that if the bankroll is -EBG that would allow a player to be +EBG.

That was indeed the core error I made with thinking this would be exploitable. I'm still going to have to wrap my head around this sometime, but that's for later.

Quote
I've just been working on this problem domain for quite a while

Yeah I'm new to this domain (until recently on BaB I never even considered anything of the sort). Even though measure theory (of which probability theory is a special case) is kind of my specialty, there's a whole lot of specific aspects to consider with applying it to a casino like Bab. Add to that that I'm mostly stoned as a goat whenever I bother with this, and the result is that I'm pretty error-prone with this Smiley
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March 05, 2018, 10:08:27 AM
 #184

maybe the best would be to stop offering the offsite feature for Investors

I think it would be best if they just stopped referring to it as leverage. It's that description which put me, as an investor, on the wrong track for a while. Specifically, I thought that the leverage would remain constant, however, since offsite is constant and onsite changes in response to betting, the leverage goes up and down as the game progresses.
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March 05, 2018, 03:04:19 PM
 #185

maybe the best would be to stop offering the offsite feature for Investors

I think it would be best if they just stopped referring to it as leverage. It's that description which put me, as an investor, on the wrong track for a while. Specifically, I thought that the leverage would remain constant, however, since offsite is constant and onsite changes in response to betting, the leverage goes up and down as the game progresses.

thx for the explanation. that is exactly the point that no one understands the onsite and offsite difference or they dont want to understand and overseeing it by purpose. I am still for cancelling the offsite part

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March 05, 2018, 05:52:59 PM
 #186

the maximum profit per game has been lowered to 1.125 % of the bankroll

...

While they didn't come right out and admit to their mistakes, at least they're acknowledging the fact that it wasn't right the first time around by doing this.

What I do at Just-Dice is risk up to 0.5% of the bankroll per bet, so investors can play it safe with "half Kelly" if they want to, and then I allow them to use up to 25x "leverage" by declaring an "offsite" amount for those who wish to risk a full Kelly, or limit their counterparty risk.

It turns out that on average investors are 16.8x offsite-leveraged which is likely too much for lots of them, but that's their call. I don't see a good reason to force investors to always have over 1% of their coins at risk to a suitably motivated multi-accounting whale when the house edge is 1%.

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March 05, 2018, 06:14:14 PM
 #187

maybe the best would be to stop offering the offsite feature for Investors

I think it would be best if they just stopped referring to it as leverage. It's that description which put me, as an investor, on the wrong track for a while. Specifically, I thought that the leverage would remain constant, however, since offsite is constant and onsite changes in response to betting, the leverage goes up and down as the game progresses.

thx for the explanation. that is exactly the point that no one understands the onsite and offsite difference or they dont want to understand and overseeing it by purpose. I am still for cancelling the offsite part

Investors who use the system properly (to reduce their counterparty risk) should not be penalized because someone might misuse it. I haven't yet seen anything about the offsite system that would warrant its removal.

Even if someone decides to use it as leverage that should still be their right. I'm overleveraged up to my ears on JD as are most investors there seeing how the bankroll exceeds CLAM supply. Not so obvious on BAB but likely similar. The risks are quite clear and simple to understand. There is no problem here.

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March 05, 2018, 06:33:07 PM
 #188


So there's actually no real issue, just investors need to be aware if they're going to use the offsite feature (especially if they aren't using it as intended) it can easily backfire and the variance will take them out.

But as always, it's really great people verifying and double checking things. Especially valuable when people like Luxo42 find mistakes, which is something I always appreciate (as honestly, my math skills are a lot weaker than 01010100b's and Luxo42's, I've just been working on this problem domain for quite a while)   Grin

maybe the best would be to stop offering the offsite feature for Investors

I don't know about removing that feature - seems useful for those who don't fully trust BaB - lets them limit the risk of BaB absconding with their entire investment. It would seem to create some risk (to the owners of BaB) regarding investors who state large but non-existent off-site holdings
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March 05, 2018, 07:00:37 PM
 #189


So there's actually no real issue, just investors need to be aware if they're going to use the offsite feature (especially if they aren't using it as intended) it can easily backfire and the variance will take them out.

But as always, it's really great people verifying and double checking things. Especially valuable when people like Luxo42 find mistakes, which is something I always appreciate (as honestly, my math skills are a lot weaker than 01010100b's and Luxo42's, I've just been working on this problem domain for quite a while)   Grin

maybe the best would be to stop offering the offsite feature for Investors

I don't know about removing that feature - seems useful for those who don't fully trust BaB - lets them limit the risk of BaB absconding with their entire investment. It would seem to create some risk (to the owners of BaB) regarding investors who state large but non-existent off-site holdings

There isn't a problem with the offsite investment feature.  The feature itself is fine.  It's just that RHavar and devans deceived investors by stating a kelly criterion that was 1/2 of what it really was while profiting greatly at their expense.
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March 05, 2018, 09:07:14 PM
 #190

I'm overleveraged up to my ears on JD as are most investors there seeing how the bankroll exceeds CLAM supply.

That doesn't necessarily follow. If you have a billion dollars worth of BTC, you could calculate what that's worth in CLAM and declare that as your "offsite" investment. It doesn't matter that there aren't enough CLAMs in the world to actually convert it to CLAMs, it's still part of your effective bankroll, which you want to risk 1% of. The "offsite investment" feature allows you to effectively use your BTC in the JD bankroll without having to even convert it to CLAM.

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March 05, 2018, 09:12:49 PM
 #191

That is only the case for an individual investor that (ab)uses the offsite investment system to risk more than he actually has.

The offsite system is meant to allow investors to lower their counterparty risk and free up liquidity by not depositing their entire investment. I strongly recommend to only use it for that purpose. If you use the offsite system properly or don't use it at all, you never have an expectation of negative growth.

This statement is false, just think about it. Suppose there are two investors, A and B, and each have 50 btc onsite and 50 btc offsite. A is lying about it but B isn't. Why would A have -EBG but B have +EBG?

I've been attempting to find a good answer to your question, and came up with a surprising realization. Your "A" guy would appear to be running a 2x kelly risk, and so we would say he has zero expected bankroll growth. We know that if the percentage you risk is twice the house edge then your expected growth is zero.

BUT... he is only risking 2x on the first bet. After that his offsite stays constant. If the house loses money, A starts risking more than 2x kelly, and if the house wins money, A finds himself risking less than 2x kelly. A isn't really using "leverage" at all. Leverage would be where he is constantly risking 2%. But this "offsite" feature means he is always risking 1% of (onsite + 50) - which is quite a different thing.

In conclusion, we can't accurately say that if you go 2x using offsite investment then you can expect 0 bankroll growth. That's not true, because kelly only talks about what happens if you are risking the same percentage of your actual bankroll on every bet, and A isn't...

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March 05, 2018, 09:42:05 PM
 #192

I've been attempting to find a good answer to your question, and came up with a surprising realization. Your "A" guy would appear to be running a 2x kelly risk, and so we would say he has zero expected bankroll growth. We know that if the percentage you risk is twice the house edge then your expected growth is zero.

BUT... he is only risking 2x on the first bet. After that his offsite stays constant. If the house loses money, A starts risking more than 2x kelly, and if the house wins money, A finds himself risking less than 2x kelly. A isn't really using "leverage" at all. Leverage would be where he is constantly risking 2%. But this "offsite" feature means he is always risking 1% of (onsite + 50) - which is quite a different thing.

In conclusion, we can't accurately say that if you go 2x using offsite investment then you can expect 0 bankroll growth. That's not true, because kelly only talks about what happens if you are risking the same percentage of your actual bankroll on every bet, and A isn't...
Kelly is the same for both, but the chance to go bankrupt goes from 0 to X% depending on the amount of leverage. At high enough leverage, going bankrupt is almost a certainty because of variance.
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March 05, 2018, 10:06:41 PM
 #193

I'm overleveraged up to my ears on JD as are most investors there seeing how the bankroll exceeds CLAM supply.

That doesn't necessarily follow. If you have a billion dollars worth of BTC, you could calculate what that's worth in CLAM and declare that as your "offsite" investment. It doesn't matter that there aren't enough CLAMs in the world to actually convert it to CLAMs, it's still part of your effective bankroll, which you want to risk 1% of. The "offsite investment" feature allows you to effectively use your BTC in the JD bankroll without having to even convert it to CLAM.


Fair enough. I guess I'm not overleveraged then. But what would happen if there's a margin call? Granted it may be unlikely that all investors would get margin-called at once and/or that they would actually attempt to convert BTC to CLAMs but still. I'm surprised nobody has called JD "dishonest and shameful"... or maybe they have and I just missed the drama.

And I guess I'm not leveraged on BAB either because I can get BTC by selling those JD CLAMs Grin

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March 05, 2018, 10:41:23 PM
 #194

I'm overleveraged up to my ears on JD as are most investors there seeing how the bankroll exceeds CLAM supply.

That doesn't necessarily follow. If you have a billion dollars worth of BTC, you could calculate what that's worth in CLAM and declare that as your "offsite" investment. It doesn't matter that there aren't enough CLAMs in the world to actually convert it to CLAMs, it's still part of your effective bankroll, which you want to risk 1% of. The "offsite investment" feature allows you to effectively use your BTC in the JD bankroll without having to even convert it to CLAM.


Fair enough. I guess I'm not overleveraged then. But what would happen if there's a margin call? Granted it may be unlikely that all investors would get margin-called at once and/or that they would actually attempt to convert BTC to CLAMs but still. I'm surprised nobody has called JD "dishonest and shameful"... or maybe they have and I just missed the drama.

And I guess I'm not leveraged on BAB either because I can get BTC by selling those JD CLAMs Grin

There's no reason to call dooglus these things.  If dooglus announced 1% of house bankroll as max profit and then allowed 2% of house bankroll as max profit instead, all while taking a direct commission from the higher wagers, then yes, it would be the same.
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March 05, 2018, 11:14:05 PM
 #195

I'm overleveraged up to my ears on JD as are most investors there seeing how the bankroll exceeds CLAM supply.

That doesn't necessarily follow. If you have a billion dollars worth of BTC, you could calculate what that's worth in CLAM and declare that as your "offsite" investment. It doesn't matter that there aren't enough CLAMs in the world to actually convert it to CLAMs, it's still part of your effective bankroll, which you want to risk 1% of. The "offsite investment" feature allows you to effectively use your BTC in the JD bankroll without having to even convert it to CLAM.


Fair enough. I guess I'm not overleveraged then. But what would happen if there's a margin call? Granted it may be unlikely that all investors would get margin-called at once and/or that they would actually attempt to convert BTC to CLAMs but still. I'm surprised nobody has called JD "dishonest and shameful"... or maybe they have and I just missed the drama.

And I guess I'm not leveraged on BAB either because I can get BTC by selling those JD CLAMs Grin

There's no reason to call dooglus these things.  If dooglus announced 1% of house bankroll as max profit and then allowed 2% of house bankroll as max profit instead, all while taking a direct commission from the higher wagers, then yes, it would be the same.

I guess the big "/s" matching the color of your trust wasn't big enough for you? Sorry if I gave you any wrong ideas. Please focus on your BAB crusade instead, preferably in an appropriate Scam Accusations thread.

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March 05, 2018, 11:58:52 PM
 #196

It turns out that on average investors are 16.8x offsite-leveraged which is likely too much for lots of them, but that's their call.

It's probably not a big deal for JD, but I think that can be potentially harmful. Once the bankroll is "big enough" (which JD's clearly is) a new investor's investment isn't going to make the site any more attractive or bring in any volume (i.e. investor gains are going to be zero-sum). When investors see that the max-bets the site accept are a tiny fraction of the kelly, they'll be incentivized to increase their leverage -- effectively taking (expected) money from conservative investors (which will push them into doing the same thing).

And now you end up with a potentially pretty unstable bankroll, as the best strategy for the highly-leveraged investors it to divest their position when ever they see a whale (which ironically is what a big bankroll is for) or have a very significant risk of a whale busting them.

But as I said, probably not a big deal for JD as your bankroll is sufficiently big that even with instability (or a big margin call) it'll have no problem supporting the players you have.

Check out gamblingsitefinder.com for a decent list/rankings of crypto casinos. Note: I have no affiliation or interest in it, and don't even agree with all the rankings ... but it's the only uncorrupted review site I'm aware of.
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March 06, 2018, 01:20:05 AM
 #197

There isn't a problem with the offsite investment feature.  The feature itself is fine.  It's just that RHavar and devans deceived investors by stating a kelly criterion that was 1/2 of what it really was while profiting greatly at their expense.
Can you quote where they stated this?

I personally do not understand why RHavar stated this if devans's statement is true:

Given that bustabit only started accepting investments after I acquired it from Ryan, I'm curious about why you seem so obsessed with him personally.

The only explanation I am able to see is that devans is only a front man on the papers and in reality RHavar pulls the strings.
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March 06, 2018, 02:13:22 AM
 #198

I've been attempting to find a good answer to your question, and came up with a surprising realization. Your "A" guy would appear to be running a 2x kelly risk, and so we would say he has zero expected bankroll growth. We know that if the percentage you risk is twice the house edge then your expected growth is zero.

BUT... he is only risking 2x on the first bet. After that his offsite stays constant. If the house loses money, A starts risking more than 2x kelly, and if the house wins money, A finds himself risking less than 2x kelly. A isn't really using "leverage" at all. Leverage would be where he is constantly risking 2%. But this "offsite" feature means he is always risking 1% of (onsite + 50) - which is quite a different thing.

In conclusion, we can't accurately say that if you go 2x using offsite investment then you can expect 0 bankroll growth. That's not true, because kelly only talks about what happens if you are risking the same percentage of your actual bankroll on every bet, and A isn't...
Kelly is the same for both, but the chance to go bankrupt goes from 0 to X% depending on the amount of leverage.

That doesn't sound right. How can the chance of bankruptcy ever be zero?

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March 06, 2018, 02:23:04 AM
 #199

I'm surprised nobody has called JD "dishonest and shameful"... or maybe they have and I just missed the drama.

Fun fact: not a single person has ever been "margin called" on JD. Probably because the bankroll is so large compared to the size of bets that happen that there's never a significant percentage downturn in the bankroll.

Even if you're at 25x offsite, the bankroll needs to draw down 4% before anyone is margin called. The current bankroll is 19.6 million, so the site would need to lose 784,000 CLAMs to cause the riskiest investor to get margin called. That's 8 max-profit bets. (JD max profit is 0.5% of the bankroll).

It's not impossible, but it does seem pretty unlikely.

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dooglus
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Merit: 1310



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March 06, 2018, 02:26:28 AM
 #200

There isn't a problem with the offsite investment feature.  The feature itself is fine.  It's just that RHavar and devans deceived investors by stating a kelly criterion that was 1/2 of what it really was while profiting greatly at their expense.
Can you quote where they stated this?

I think it's confusion between the most a single account can bet in one round, and the most all the accounts together can profit by in one round.

So two confusions: one account vs. all of them, and the amount staked vs. the amount profited.

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