Re: To chain or not to chain

OK, it seems there's consensus towards starting with no chaining, but 
keeping this option open for later exploration. This implies that the 
protocol requirements draft does *not* have to include a requirement 
to support chaining at the moment.
Taking this into consideration, it seems that the three drafts in 
their current form are fine in this context and don't need further 
additions (except, maybe, adding a little note to Section 3.5 in the 
requirements draft??).
-Markus