User blog comment:Billicusp/Extending ExE to absurd heights/@comment-5529393-20160222033533/@comment-5529393-20160222184330

That's not in parallel with single brackets though - with single brackets, comes after, then  and so forth.

What would be? I believe 1{1}1 is just 1, hence so would 1{1{1...{1}...1}1}1...