wu :: forums
        (http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi)
      

        riddles >> hard >> Smullyan's Two Envelopes Paradox
        
(Message started by: Johan_Gunardi on May 21st, 2007, 12:22am)
Title: Smullyan's Two Envelopes Paradox
Post by Johan_Gunardi on May 21st, 2007, 12:22am
http://en.wikipedia.org/wiki/Two_envelopes_problem#The_hardest_problem

I think the second statement is not true. "Let the amounts in the envelopes be Y and 2Y. Now by swapping, if you gain you gain Y but if you lose you also lose Y. So the amount you might gain is equal to the amount you might lose."

If you gain you pick Y, if you lose you pick 2Y. So the value is not constant.

What do you think?
Title: Re: Smullyan's Two Envelopes Paradox
Post by towr on May 21st, 2007, 12:51am
If you gain, you go from Y to 2Y, difference: Y
If you loose, you go from 2Y to Y, difference: Y


Powered by YaBB 1 Gold - SP 1.4!
Forum software copyright © 2000-2004 Yet another Bulletin Board