Elo from LessWrong suggested this problem:
I write a sequence of n heads or tails on paper.
I then start flipping a sequence of n coins. If next coin does not match my sequence, I restart a new sequence of n coins.
What is the rule for the relationship between how many coins I need to flip to get the sequence I have pre-committed to and the length of the sequence of?
Discussion there:
http://lesswrong.com/r/discussion/lw/pg3/open_thread_september_25_october_1_2017/dxlt
protokol2020 
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I’m still hoping for the 10K BC post!
A dedicated post on the earth rotation/temp thing.
And maybe one on the greenhouse gasses dogma!
I hope it’s not up to a coin flip, or do i?
I have every intention to produce several posts. Currently, I use almost all of my thinking power on something else but will be back!