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Re:Robinhood launches 3% checking account by quickthrower2 on Thursday December 13, 2018 @09:47PM (#18678044)
Geeks can and do outmath financial firms and even bookmakers and casinos.

The financial firm, bookmaker and casino just needs to outmath the 99.9% of customers who are not trying to beat them to win, and evict the 0.01% of customers whose outmathing is so good it is causing them problems.

Re:Robinhood launches 3% checking account by hawkice on Thursday December 13, 2018 @10:53PM (#18678340)
Sure, but not with a 4-second calculation based on a news headline. That's the larger point here.
Re:Robinhood launches 3% checking account by blueside on Friday December 14, 2018 @01:47PM (#18683391)
Exactly. Counting cards at the blackjack table in Vegas isn't illegal, but they won't let you play after they figure out that you are. You can can beat the bookmakers, but once you do, you either get cut off or you only get offered odds with more juice.
Re:Robinhood launches 3% checking account by vec on Friday December 14, 2018 @04:41PM (#18685083)
How much are you willing to gamble on the prospect that you're in the top 0.1%? And before you answer, consider that you haven't been evicted so you're obviously not in the top 0.01%.
Re:Robinhood launches 3% checking account by IAmGraydon on Thursday December 13, 2018 @11:01PM (#18678370)
With all due respect, I’m going to go out on a limb and assume you aren’t that geek since 99.9 + 0.01 != 100.
Re:Robinhood launches 3% checking account by quickthrower2 on Thursday December 13, 2018 @11:08PM (#18678409)
With all due respect, those numbers are on purpose, i.e.:

99.9% of customers who are not trying to beat them to win

0.01% of customers whose outmathing is so good it is causing them problems.

The rest are customers who are outmathing them, but not enough to cause them problems. And by problems I mean problems worth spending their time on.