Andrew, Wyatt, and Daveed kindly finished the paper which was mentioned during last SG7 session and because the next SG7 meeting is next week I would like all of you to read the paper and send feedback to SG7 mailing list, so we have as much of information as possible.

The paper is here: https://isocpp.org/files/papers/P2320R0.pdf and it will be part of the next mailing.