well, the three proposals are from the same group of people. they probably are reactions to feedback from the unicode technical commitee[0]. I've looked into th

well, the three proposals are from the same group of people. they probably are reactions to feedback from the unicode technical commitee[0]. I've looked into the utc meeting notes, but those don't really contain much info[1]. [0]: see the progression at https://www.unicode.org/cgi-bin/GetMatchingDocs.pl?L2/18-275R https://www.unicode.org/cgi-bin/GetMatchingDocs.pl?L2/18-275... and https://www.unicode.org/cgi-bin/GetMatchingDocs.pl?L2/18-235 https://www.unicode.org/cgi-bin/GetMatchingDocs.pl?L2/18-235 and https://www.unicode.org/cgi-bin/GetMatchingDocs.pl?L2/17-435 https://www.unicode.org/cgi-bin/GetMatchingDocs.pl?L2/17-435 [1]: https://www.unicode.org/L2/L2018/18007.htm https://www.unicode.org/L2/L2018/18007.htm and https://www.unicode.org/L2/L2018/18272.htm https://www.unicode.org/L2/L2018/18272.htm and https://www.unicode.org/L2/L2018/18115.htm https://www.unicode.org/L2/L2018/18115.htm