User blog comment:Ikosarakt1/Ideas of going past psi(K)/@comment-35470197-20200118075137/@comment-35470197-20200118084423

The reason why the original definition does not work in your blog post is because for example, χ in Deedlit's blog post is only defined below the least weakly 1-Mahlo cardinal, while your blog post allows greater ordinals as an input.