"What decision do I make now?" : Math will not get you there

[kazana]

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historical overview cannot help you [img]/images/graemlins/smile.gif[/img] So, why ever do it?

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I don't know about the other players here, but I've never made any maths-based decision that rely on my historical data as input.

Nevertheless, my historical data helps me a lot to find faulty patterns in my play. So, if I realize that cold-calling with 72o didn't serve me well, it may well have an impact on my decisions at the table.
I wouldn't claim that this decision is based on maths, though.

I don't quite get your point. It's as if you're comparing apples to... well... high heels or something like that.