The September Open Thread, Part 2 has got nearly 800 posts, so let's have a little breathing room.
This thread is for the discussion of Less Wrong topics that have not appeared in recent posts. If a discussion gets unwieldy, celebrate by turning it into a top-level post.
"Incredibly Depressing Mega Millions Lottery Simulator!" — this may be helpful to show to people who don't quite grasp probability theory well enough to break habits like playing the lottery and other forms of gambling.
"In the 156845 times this simulation has run, players have won $1686353 And by won I mean they have won back $1686353 of the $156845 they spent (1075%)."
"In the 590873 times this simulation has run, players have won $2761902 And by won I mean they have won back $2761902 of the $590873 they spent (467%)."
"In the 842587 times this simulation has run, players have won $2788774 And by won I mean they have won back $2788774 of the $842587 they spent (330%)."
This part seems to fluctuate pretty wildly. But it's a very cool and intuitive way to show people the low chance of them winning the lottery.