Interesting. How is this 'happiness' quantified? Because it really can't be (it'd be like comparing utility between persons). Definitely disagree on the free will being detrimental part.
Sounds like this guy likes soma and meaningless sex
Sorry I just added more info to my post.
He argued that happiness can be "synthesised". (i.e., it's not something we "find" or "received" as much as what our mind "accepts"). This is backed up by another experiment in which people are asked to rank 6 paintings from most liked to least liked, they were then given 1 of the paintings and the same test is done. They were asked to rank the paintings again and it was found that almost always people would rank the painting that they were given higher than they did initially.