I think this was meant as a joke. 🤣 

From: Std-Proposals <std-proposals-bounces@lists.isocpp.org> on behalf of Tymi via Std-Proposals <std-proposals@lists.isocpp.org>
Sent: Tuesday, May 6, 2025 7:37:00 AM
To: std-proposals@lists.isocpp.org <std-proposals@lists.isocpp.org>
Cc: Tymi <tymi.cpp@gmail.com>
Subject: Re: [std-proposals] P3665 (Vertical Text Processing)

https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2025/p3665r0.html

I understand the idea and I can see the benefit of it, although I don't understand why the proposal's example suggests that the text is written right-to-left.

Tymi.