At least according to Ashton:

http://wikisocion.org/en/index.php?t...alk:Dynamicism

I have no inclination to debate this in detail with him, mainly because it's personal -- I don't like him, and I think it's pointless discussing socionics with him. But, perhaps someone will find it interesting (or see it as a better version of socionics than the one I and others represent, no idea).