In case you're interested in reading previous discussion of this, here is a list of (some of) the previous submissions:

https://news.ycombinator.com/item?id=7400532

https://news.ycombinator.com/item?id=6851475 <- 62 comments

https://news.ycombinator.com/item?id=6821326

https://news.ycombinator.com/item?id=3754697 <- 17 comments

https://news.ycombinator.com/item?id=3121508

https://news.ycombinator.com/item?id=2234878

https://news.ycombinator.com/item?id=1739868

https://news.ycombinator.com/item?id=1499925

https://news.ycombinator.com/item?id=1106502

https://news.ycombinator.com/item?id=312827 <- 25 comments

There may be more.

Thanks a lot. I have to say I didn't search first, I never thought (and never saw) it was discuss here.

how about Mind-body problem