So this is like going from SMTP to IMAP ?
(I also upvoted you ... you shouldn't get penalized for an honest question)
I don't generally make excuses when I apologize because I think it diminishes the value of the apology itself. In this case I think it's fair to admit I thought he was trolling (and apparently so did his down-voters).
In any case, hopefully I'll be a better man tomorrow ... iron sharpens iron.
ps: the explanation for my quick oneliner is that I often see very limited protocols (say FTP, or SMTP) that require many round trip over the wire where it would now (I understand back in the days servers were anemic) make sense to distribute the computation a little on both side. Not unlike memory IMHO.