User blog comment:Cyias123/A new idea/@comment-25601061-20170729005601/@comment-30754445-20170801105032

Nayuta Ito, we can't use the Conway-Chained-Arrows expressions to estimate "strength", because they're used incorrectly in the blog post.

The poster made it very clear that each level is just "[the previous level] number of arrows", so Alemango is correct: It's the same growth rate of as Graham's function (or the letter K in my letter notation).