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I was thinking the exact same thing reading the article. It would have to be an actual class, preferably taught by the same person (to control for personal charisma etc) that does not directly translate into behavioral modification but does teach something useful (to avoid dropout/motivation differentials) Music? Sports? I'm not sure.

Did you read the article? They quite clearly make the point that there is no clear, direct relationship between offense rate and severity of punishment (17 vs 18 year olds), and they speculate this is because much of the behavior in question happens on autopilot. Hence CBT.

I had a good chuckle at that. It instantly reminded me of the Itanium sales forecasts[1]. It's like people are afraid to say "I don't know" (especially when money is involved) and just end up telling people what they want to hear.

1: https://commons.m.wikimedia.org/wiki/File:Itanium_Sales_Fore...

My annoying neighbor has this exact same doorbell. Oh Hacker News, how you tempt me ;)

This is really cool! Good job!

Do you mind sharing the python as well?

Using "RC4-like" as a selling point is a very bold move. Let's see if it pays off...

It's not a new scheme, it's exactly how that "one online gambling site" does it. I wondered how they did it, so I figured it out, replicated it and wrote a blurb about it.

It's a pretty neat trick to extend the "all or nothing" property to multiple transactions. For some very limited use-cases (like my admittedly contrived example), this is exactly what you want. Usually it's not. Usually you just have to wait.

Honestly, bitcoin is not really suited for instant gratification things.