An idea for one of those years-long lucid dreams
The topic pops up here every so often. Someone claims to have spent years in their lucid dream, followed by pages of posts of speculation, flaming, skeptics, devotees, etc. I believe the common explanation for this is currently that you only seriously "remember" the important bits; the rest is the kind of filler memories most of our lives contain(do you remember every bite and swallow of breakfast this day last year? No.).
One trick I've seen cited is to prompt some element of your dream to prolong the dream as long as possible. I propose this as a topic to maybe get someone interested in trying extended dreaming:
Play back your entire life thus far... as it would have gone if you were the opposite gender.
Should be easier for some of us than others, and it will be interesting to see how different your life really is...