Make a coin flip < 7 seconds before deciding.
Most people don't make coin flips. You can set the rule that making a coin flip is equivalent to picking both boxes.
Fine, but most people can notice a brain scanner attached to their heads, and would then realize that the game starts at "convince the brain scanner that you will pick one box". Newcomblike problems reduce to this multi-stage game too.
Previous Open Thread: http://lesswrong.com/r/discussion/lw/k9x/open_thread_may_26_june_1_2014/
(oops, we missed a day!)
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one.
3. Open Threads should start on Monday, and end on Sunday.
4. Open Threads should be posted in Discussion, and not Main.