User blog comment:B1mb0w/The J Function/@comment-99.185.0.100-20150829194135/@comment-10262436-20150831115336

Yes you seem to be right. Haven't tried to "prove" the growth rate is w^w^2 in the blog. I am suspicious that it may only be w^w.2, but either way it wont get me to epsilon_0.

Cheers.