I believe it was Lazarus Long.
Actually, there are more layers of deniability than that.
Lazarus Long may have said that, but he may or may not have believed it. He was encouraged to just talk, and he very clearly wasn't putting together a codified system of what he believed. Also, he was known to lie.
And we don't have a full transcript of what he was supposed to have said-- it was a computer-edited compendium of advice, and the computer may have had her own agenda.
Did Heinlein believe everything in the Notebooks of Lazarus Long was good advice? Or was some of it just characterization?
G...
In celebration of the virtues of applied rationality, Less Wrong is going to Burning Man! And because Heinlein rationalists should win, Bayes Camp is going to be the most awesome place there.
A bunch of people from SingInst/Less Wrong will be descending upon the desert, bedecked as the members of the Bayesian Conspiracy. Kevin, Jasen, JustinShovelain, Peter de Blanc, Michael Vassar and Nick Tarleton, among others, will be there. If you'd like to stop by, say so in the comments!
We'll be at 6:50, F, and should be there from Monday 30th.
Please note: Burning Man is serious stuff, and if you don’t think you’re up to the desert, you shouldn’t come. Either way, read the survival guide.
EDIT: updated location