I say either geometric (weak Singularity, no FTL) or a hell of a lot
higher than exponential (strong Singularity, First Cause and Big Bang
solved, do-it-yourself Universes).
--
sentience@pobox.com Eliezer S. Yudkowsky
http://tezcat.com/~eliezer/singularity.html
http://tezcat.com/~eliezer/algernon.html
Disclaimer: Unless otherwise specified, I'm not telling you
everything I think I know.