On Mon, 1 Apr 2019, Tobias Heider wrote:

The INTERMEDIATE draft explicitly allows to specify more than one
roundtrip, and leaves
the order of those exchanges to the documents introducing the new
roundtrips

It allows it, but that does not mean we want things to go in serial
when they could go in parallel :)

If I wrote a draft today that adds a single large Notify in an
INTERMEDIATE exchange,
it would not be obvious how it would interact with e.G. the hybrid KE
that adds up to 7
additional INTERMEDIATE roundtrips.

The draft should be clear on how to handle that. It should not depend
on having its payload in the very first INTERMEDIATE (since then all new
things would always all need to be there and at some point we are full
again)

I would have to explicitly specify in my draft that this additional
Notify is always added to the first
INTERMEDIATE specified in the Hybrid KE, if I wanted it to be there.

I don't think we would allow you to do that. Because if another draft
insisted on the same thing, who gets to win?

Otherwise it could be added to any
of the INTERMEDIATES in that draft, or to a new INTERMEDIATE before all
hybrid KE ones, or to a new
INTERMEDIATE after the hybrid KEs...

Yes. ping pong for everyone :)

Paul

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