Quote from: Csmiami on Today at 04:36:14 PM

It will still not lose, since it'd be as if the double spent ones had never happened. They do stop winning, but never lose

Really? I don't know how Casinos actually work but losing profit is actually a loss, value isn't being created out of thin air.

Replace the Casino example with an exchange.

Bitcoin price = $1000

I deposit 1 BTC, the market crashes, and I sell it for 100 USD right before the market shoots back to $1000, I then go and double-pend that 1 BTC, the exchange will freeze that remaining $100 but that does not solve their problem, the person who bought my 1 BTC will want to withdraw it, in this case, the exchange lost 0.9BTC which they need to pay to whoever the person that bought my "imaginary" 1 BTC which was never actually confirmed in the exchange's wallet.

Also for a Casino, the double-spent amount is a loss they have to bear, the inner working of any casino or any organization for that matter does not matter, when someone double-spends something, someone else loses it, unless that someone lives in a vacuum.