It is about as brainy as clubs can ever get. mensa is a worldwide conglomeration of intelligent people who have an IQ in the top 2% of the population.
mensa has 3 stated aims:
mensa was founded in 1946 in Oxford, England. 'mensa' is Latin for 'table', symbolizing a 'round-table' where members can meet and exchange views as equals. It is completely independent of affiliation with any other society or organization. By constitutional design, mensa has no political, religious or ideological association.
There are some 100,000 members in more than 100 countries.
mensa takes no official stand on politics, religion or any social issue. mensa has members from so many different countries and cultures with differing points of view, that for mensa to espouse a particular point of view would go against its role as a forum for all points of view. Of course, individual mensa members often have strong opinions - and several of them. It is said that in a room with 12 mensans you will find at least 13 differing opinions on any given subject!